diff --git a/.gitignore b/.gitignore
index 91afeb3..ec60210 100644
--- a/.gitignore
+++ b/.gitignore
@@ -46,3 +46,5 @@ next-env.d.ts
 Budfile
 certificates
 /backups/*
+
+CHANGELOG.md.tmp
diff --git a/CHANGELOG.md b/CHANGELOG.md
index ce38742..4ca152f 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,17 @@
 # Changelog
 
+## Version 0.2.23
+
+### Fixed
+
+* floating number coin balance (#155)
+* disable freshness check if browser does not support web crypto (#161)
+
+### Improved
+
+* use transparent background PWA icon with correct text (#103)
+* display icon in logo
+
 ## Version 0.2.22
 
 ### Added
diff --git a/app/actions/data.ts b/app/actions/data.ts
index ca39529..cd438f1 100644
--- a/app/actions/data.ts
+++ b/app/actions/data.ts
@@ -130,7 +130,7 @@ async function saveData<T>(type: DataType, data: T): Promise<void> {
  * Calculates the server's global freshness token based on all core data files.
  * This is an expensive operation as it reads all data files.
  */
-async function calculateServerFreshnessToken(): Promise<string> {
+async function calculateServerFreshnessToken(): Promise<string | null> {
   try {
     const settings = await loadSettings();
     const habits = await loadHabitsData();
diff --git a/components/Logo.tsx b/components/Logo.tsx
index 0beafe4..87464d1 100644
--- a/components/Logo.tsx
+++ b/components/Logo.tsx
@@ -1,9 +1,9 @@
-import { Sparkles } from "lucide-react"
+import Image from "next/image"
 
 export function Logo() {
   return (
     <div className="flex items-center gap-2">
-      {/* <Sparkles className="h-6 w-6 text-primary" /> */}
+      <Image src="/icons/icon.png" alt="HabitTrove Logo" width={96} height={96} className="h-12 w-12 hidden xs:inline" />
       <span className="font-bold text-xl">HabitTrove</span>
     </div>
   )
diff --git a/hooks/useCoins.tsx b/hooks/useCoins.tsx
index bbd507e..168e753 100644
--- a/hooks/useCoins.tsx
+++ b/hooks/useCoins.tsx
@@ -1,7 +1,7 @@
 import { useAtom } from 'jotai';
 import { useState, useEffect, useMemo } from 'react';
 import { useTranslations } from 'next-intl';
-import { calculateCoinsEarnedToday, calculateCoinsSpentToday, calculateTotalEarned, calculateTotalSpent, calculateTransactionsToday, checkPermission } from '@/lib/utils'
+import { calculateCoinsEarnedToday, calculateCoinsSpentToday, calculateTotalEarned, calculateTotalSpent, calculateTransactionsToday, checkPermission, roundToInteger } from '@/lib/utils'
 import {
   coinsAtom,
   coinsEarnedTodayAtom,
@@ -86,12 +86,22 @@ export function useCoins(options?: { selectedUser?: string }) {
       setBalance(loggedInUserBalance);
     } else if (targetUser?.id) {
       // If an admin is viewing another user, calculate their metrics manually
-      setCoinsEarnedToday(calculateCoinsEarnedToday(transactions, timezone));
-      setTotalEarned(calculateTotalEarned(transactions));
-      setTotalSpent(calculateTotalSpent(transactions));
-      setCoinsSpentToday(calculateCoinsSpentToday(transactions, timezone));
-      setTransactionsToday(calculateTransactionsToday(transactions, timezone));
-      setBalance(transactions.reduce((acc, t) => acc + t.amount, 0));
+      const earnedToday = calculateCoinsEarnedToday(transactions, timezone);
+      setCoinsEarnedToday(roundToInteger(earnedToday));
+
+      const totalEarnedVal = calculateTotalEarned(transactions);
+      setTotalEarned(roundToInteger(totalEarnedVal));
+
+      const totalSpentVal = calculateTotalSpent(transactions);
+      setTotalSpent(roundToInteger(totalSpentVal));
+
+      const spentToday = calculateCoinsSpentToday(transactions, timezone);
+      setCoinsSpentToday(roundToInteger(spentToday));
+
+      setTransactionsToday(calculateTransactionsToday(transactions, timezone)); // This is a count
+
+      const calculatedBalance = transactions.reduce((acc, t) => acc + t.amount, 0);
+      setBalance(roundToInteger(calculatedBalance));
     }
   }, [
     targetUser?.id,
diff --git a/lib/atoms.ts b/lib/atoms.ts
index e47f7df..fa54111 100644
--- a/lib/atoms.ts
+++ b/lib/atoms.ts
@@ -26,7 +26,8 @@ import {
   isHabitDueToday,
   getNow,
   isHabitDue,
-  getHabitFreq
+  getHabitFreq,
+  roundToInteger
 } from "@/lib/utils";
 import { atomFamily, atomWithStorage } from "jotai/utils";
 import { DateTime } from "luxon";
@@ -57,26 +58,30 @@ export const serverSettingsAtom = atom(getDefaultServerSettings());
 export const coinsEarnedTodayAtom = atom((get) => {
   const coins = get(coinsAtom);
   const settings = get(settingsAtom);
-  return calculateCoinsEarnedToday(coins.transactions, settings.system.timezone);
+  const value = calculateCoinsEarnedToday(coins.transactions, settings.system.timezone);
+  return roundToInteger(value);
 });
 
 // Derived atom for total earned
 export const totalEarnedAtom = atom((get) => {
   const coins = get(coinsAtom);
-  return calculateTotalEarned(coins.transactions);
+  const value = calculateTotalEarned(coins.transactions);
+  return roundToInteger(value);
 });
 
 // Derived atom for total spent
 export const totalSpentAtom = atom((get) => {
   const coins = get(coinsAtom);
-  return calculateTotalSpent(coins.transactions);
+  const value = calculateTotalSpent(coins.transactions);
+  return roundToInteger(value);
 });
 
 // Derived atom for coins spent today
 export const coinsSpentTodayAtom = atom((get) => {
   const coins = get(coinsAtom);
   const settings = get(settingsAtom);
-  return calculateCoinsSpentToday(coins.transactions, settings.system.timezone);
+  const value = calculateCoinsSpentToday(coins.transactions, settings.system.timezone);
+  return roundToInteger(value);
 });
 
 // Derived atom for transactions today
@@ -103,9 +108,10 @@ export const coinsBalanceAtom = atom((get) => {
     return 0; // No user logged in or ID not set, so balance is 0
   }
   const coins = get(coinsAtom);
-  return coins.transactions
+  const balance = coins.transactions
     .filter(transaction => transaction.userId === loggedInUserId)
     .reduce((sum, transaction) => sum + transaction.amount, 0);
+  return roundToInteger(balance);
 });
 
 /* transient atoms */
diff --git a/lib/utils.test.ts b/lib/utils.test.ts
index 0eb8426..3e68d8a 100644
--- a/lib/utils.test.ts
+++ b/lib/utils.test.ts
@@ -22,9 +22,10 @@ import {
   serializeRRule,
   convertHumanReadableFrequencyToMachineReadable,
   convertMachineReadableFrequencyToHumanReadable,
-  getUnsupportedRRuleReason,
   prepareDataForHashing,
-  generateCryptoHash
+  generateCryptoHash,
+  getUnsupportedRRuleReason,
+  roundToInteger
 } from './utils'
 import { CoinTransaction, ParsedResultType, Settings, HabitsData, CoinsData, WishlistData, UserData } from './types'
 import { DateTime } from "luxon";
@@ -42,6 +43,33 @@ describe('cn utility', () => {
   })
 })
 
+describe('roundToInteger', () => {
+  test('should round positive numbers correctly', () => {
+    expect(roundToInteger(10.123)).toBe(10);
+    expect(roundToInteger(10.5)).toBe(11);
+    expect(roundToInteger(10.75)).toBe(11);
+    expect(roundToInteger(10.49)).toBe(10);
+  });
+
+  test('should round negative numbers correctly', () => {
+    expect(roundToInteger(-10.123)).toBe(-10);
+    expect(roundToInteger(-10.5)).toBe(-10); // Math.round rounds -x.5 to -(x-1) e.g. -10.5 to -10
+    expect(roundToInteger(-10.75)).toBe(-11);
+    expect(roundToInteger(-10.49)).toBe(-10);
+  });
+
+  test('should handle zero correctly', () => {
+    expect(roundToInteger(0)).toBe(0);
+    expect(roundToInteger(0.0)).toBe(0);
+    expect(roundToInteger(-0.0)).toBe(-0);
+  });
+
+  test('should handle integers correctly', () => {
+    expect(roundToInteger(15)).toBe(15);
+    expect(roundToInteger(-15)).toBe(-15);
+  });
+});
+
 describe('getUnsupportedRRuleReason', () => {
   test('should return message for HOURLY frequency', () => {
     const rrule = new RRule({ freq: RRule.HOURLY });
@@ -142,7 +170,7 @@ describe('isTaskOverdue', () => {
     // Create a task due "tomorrow" in UTC
     const tomorrow = DateTime.now().plus({ days: 1 }).toUTC().toISO()
     const habit = createTestHabit(tomorrow)
-    
+
     // Test in various timezones
     expect(isTaskOverdue(habit, 'UTC')).toBe(false)
     expect(isTaskOverdue(habit, 'America/New_York')).toBe(false)
@@ -597,7 +625,7 @@ describe('isHabitDueToday', () => {
 
   test('should return false for invalid recurrence rule', () => {
     const habit = testHabit('INVALID_RRULE')
-    const consoleSpy = spyOn(console, 'error').mockImplementation(() => {})
+    const consoleSpy = spyOn(console, 'error').mockImplementation(() => { })
     expect(isHabitDueToday({ habit, timezone: 'UTC' })).toBe(false)
   })
 })
@@ -710,7 +738,7 @@ describe('isHabitDue', () => {
   test('should return false for invalid recurrence rule', () => {
     const habit = testHabit('INVALID_RRULE')
     const date = DateTime.fromISO('2024-01-01T00:00:00Z')
-    const consoleSpy = spyOn(console, 'error').mockImplementation(() => {})
+    const consoleSpy = spyOn(console, 'error').mockImplementation(() => { })
     expect(isHabitDue({ habit, timezone: 'UTC', date })).toBe(false)
   })
 })
diff --git a/lib/utils.ts b/lib/utils.ts
index 7b3f327..d9aede3 100644
--- a/lib/utils.ts
+++ b/lib/utils.ts
@@ -19,6 +19,11 @@ export function getTodayInTimezone(timezone: string): string {
   return getISODate({ dateTime: now, timezone });
 }
 
+// round a number to the nearest integer
+export function roundToInteger(value: number): number {
+  return Math.round(value);
+}
+
 export function getISODate({ dateTime, timezone }: { dateTime: DateTime, timezone: string }): string {
   return dateTime.setZone(timezone).toISODate()!;
 }
@@ -518,14 +523,19 @@ export function prepareDataForHashing(
  * @param dataString The string to hash.
  * @returns A promise that resolves to the hex string of the hash.
  */
-export async function generateCryptoHash(dataString: string): Promise<string> {
-  const encoder = new TextEncoder();
-  const data = encoder.encode(dataString);
-  // globalThis.crypto should be available in modern browsers and Node.js (v19+)
-  // For Node.js v15-v18, you might need: const { subtle } = require('node:crypto').webcrypto;
-  const hashBuffer = await globalThis.crypto.subtle.digest('SHA-256', data);
-  const hashArray = Array.from(new Uint8Array(hashBuffer));
-  // Convert buffer to hex string
-  const hashHex = hashArray.map(b => b.toString(16).padStart(2, '0')).join('');
-  return hashHex;
+export async function generateCryptoHash(dataString: string): Promise<string | null> {
+  try {
+    const encoder = new TextEncoder();
+    const data = encoder.encode(dataString);
+    // globalThis.crypto should be available in modern browsers and Node.js (v19+)
+    // For Node.js v15-v18, you might need: const { subtle } = require('node:crypto').webcrypto;
+    const hashBuffer = await globalThis.crypto.subtle.digest('SHA-256', data);
+    const hashArray = Array.from(new Uint8Array(hashBuffer));
+    // Convert buffer to hex string
+    const hashHex = hashArray.map(b => b.toString(16).padStart(2, '0')).join('');
+    return hashHex;
+  } catch (error) {
+    console.error(`Failed to generate hash: ${error}`);
+    return null;
+  }
 }
diff --git a/package.json b/package.json
index 3a46669..276df73 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "habittrove",
-  "version": "0.2.22",
+  "version": "0.2.23",
   "private": true,
   "scripts": {
     "dev": "next dev --turbopack",
diff --git a/public/icons/icon.png b/public/icons/icon.png
index 0a09cf0..e5e9dd2 100644
Binary files a/public/icons/icon.png and b/public/icons/icon.png differ
diff --git a/public/icons/web-app-manifest-192x192.png b/public/icons/web-app-manifest-192x192.png
index 3c2e67c..d5a6a2c 100644
Binary files a/public/icons/web-app-manifest-192x192.png and b/public/icons/web-app-manifest-192x192.png differ
diff --git a/public/icons/web-app-manifest-512x512.png b/public/icons/web-app-manifest-512x512.png
index 0c519f5..d295a17 100644
Binary files a/public/icons/web-app-manifest-512x512.png and b/public/icons/web-app-manifest-512x512.png differ