Glow Timer vs Simple Calculator
Price, ratings, monetisation and update history for both apps, side by side โ with what reviewers say about each.
Glow Timer
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Time you can see, for work, study, and the moments in between. Glow Timer turns a countdown into a changing field of light, color, and waves. Keep it beside your notes, your book, or your workspace to see how much time is left. SET YOUR OWN PACE Start with a 3-, 15-, 25-, or 50-minute preset. Swipe to adjust the duration, and double-tap to start, pause, or resume. FOCUS, THEN TAKE A BREAK Use focus mode to move between a work session and a short break. Adjust the work and break durations in Settings. FIND YOUR GLOW Choose a color theme to suit the moment, and change the app language from Settings. Some themes require an in-app purchase.
Simple Calculator
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Make everyday calculations simple and satisfying. Raised buttons, readable numbers, and clear feedback make this calculator a pleasant companion for everyday arithmetic and shopping discounts. No ads and no account required. Features โข Add, subtract, multiply, and divide โข Decimals, percentages, and sign changes โข Repeat calculations by pressing equals again โข Grouped digits and a display that adapts to long numbers โข Key animations and haptic feedback โข Adjustable button glow in Settings โข Calculate offline Choose your look The app purchase includes all calculator functions and the Porcelain theme. The optional Pro Skin Pack adds Graphite, Mint, Blush, Sand, and Midnight with a one-time in-app purchase. The pack changes the appearance only. Purchases and restoring purchases require an internet connection. No personal data collection.
Screenshots
Verdict
The clearest difference is price: Glow Timer at Free against Simple Calculator's $0.99. Simple Calculator's advantage is update cadence (every 5 weeks vs every 3 months). On ads, in-app purchases, device support and iOS requirement there is nothing between them.
Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS
Glow Timer is free to download; Simple Calculator costs $0.99 up front. Glow Timer sells 1 one-off in-app purchase and Simple Calculator sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
Glow Timer ships an update every 3 months, Simple Calculator every 5 weeks. The most recent releases landed on November 5, 2026 and November 10, 2026 respectively.
| Parameter | Glow Timer | Simple Calculator |
|---|---|---|
| Price | Free โ better | $0.99 |
| Update frequency | Every 3 months | Every 5 weeks โ better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Devices | iPhone | iPhone |
| Requires iOS | 17.0 | 17.0 |
| Further details โ not scored | ||
| Size | 1 MB | 2 MB |
| Age rating | 4+ | 4+ |
| Developer | Kazuma Takahashi | SMART BIT K.K |
In-app purchases
Glow Timer
- Premium Mode$3.99
Simple Calculator
- Pro Skin Pack$2.99
Questions
Is Glow Timer free?
Is Simple Calculator free?
Do Glow Timer or Simple Calculator have ads?
Which is updated more often, Glow Timer or Simple Calculator?
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