C% vs CountStamp
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
C%
Track the battery life of devices without built-in indicators. Log charges to get personalized estimates based on your usage habits. View all devices sorted by urgency and receive timely notifications.
- Personalized battery estimates
- Device urgency sorting
- Home screen widgets
- Timely charging notifications
- Supports numerous device types
- Charge history and usage charts
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How long has your electric shaver actually been sitting on empty? When did you last charge your earbuds? For devices without their own battery indicator, it's genuinely hard to know. C% - Charging Tracker keeps tabs on all of them. Tap once to log a charge, and the app estimates how much battery life is left based on your real habits, not just spec-sheet numbers. • Smart and personalised After a few charges, C% learns your actual usage pattern for each device. Your laptop that never makes it the full 20 hours? Your earbuds you charge twice a day? The estimates adjust to match. The more you use it, the more accurate it gets. • Everything at a glance The main screen shows all your devices sorted by urgency, so the ones that need attention rise to the top. A summary bar at the top tells you how many are fine, and how many need charging right now. Tap any device to see its full charge history, weekly usage chart, and how your habits compare to expected battery life. • Widgets that actually do something Add the home screen widget to see battery status for your most important devices without opening the app. Tap the bolt button right from the widget to log a charge instantly. • Notifications that know when to stop C% sends a heads-up before each device's battery is predicted to run out, and a nudge if you've gone unusually long without charging. No constant buzzing, just timely reminders when they matter. • Built for real life Supports smartphones, tablets, smartwatches, wireless earbuds, laptops, game controllers, e-readers, electric shavers, smart toothbrushes, drawing tablets, portable speakers, and more.
CountStamp
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CountStamp is a tally counter for recording timestamped totals when the history matters later. Create separate counters, tap large +/- controls in the app or supported widgets, review each change, and export a CSV when you need a handoff or report. Main features: - Multiple counters for separate totals - Large +/- controls for fast in-app counting - Optional limits for capacity or target counts - Timestamped history with time, change, total, and input source - Count Details for current value, peak, tap count, range, and recent activity - Home Screen widgets and Lock Screen controls for the selected count, with Pro +/- input from supported surfaces - CSV preview, file generation, and sharing, with export available with Pro - Local app storage, no account required, and no custom backend sync in this version Useful for: - Headcounts and attendance checks - Capacity or target tracking - Event, incident, and inventory logs - Manual totals that need a timestamped record Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is update cadence: C% at every 3 weeks against CountStamp's every 2 months. On price, ads, in-app purchases and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. C% sells 1 one-off in-app purchase and CountStamp sells 2 in-app purchases, starting at $9.99 per year. Whichever you choose, the download price is not the number that matters.
C% ships an update every 3 weeks, CountStamp every 2 months. The most recent releases landed on October 13, 2026 and October 5, 2026 respectively.
| Parameter | C% | CountStamp |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (3 ratings) — better | — |
| Number of ratings | 3 — better | — |
| Update frequency | Every 3 weeks — better | Every 2 months |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad — better | iPhone |
| Requires iOS | 17.0 — better | 18.5 |
| Further details — not scored | ||
| Size | 5 MB | 4 MB |
| Age rating | 4+ | 4+ |
| Developer | Mounif Fatayri | Ryota Yashima |
In-app purchases
C%
- Unlock Unlimited Devices$1.99
CountStamp
- Pro Annual$9.991 Year
- Pro Lifetime$24.99








