Comparison

Glow Timer vs Simple Calculator

Price, ratings, monetisation and update history for both apps, side by side โ€” with what reviewers say about each.

Head to head
About

Glow Timer

Features
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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.

About

Simple Calculator

Features
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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 โ€ข Add, subtract, multiply, and divide โ€ข Decimals, percentages, and sign changes โ€ข Repeat calculations by pressing equals again โ€ข Grouped digits and a display that adapts to long numbers โ€ข Key animations and haptic feedback โ€ข Adjustable button glow in Settings โ€ข 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

Glow Timer4 screens
Simple Calculator4 screens

Verdict

The call

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

CostPrice ยท In-app purchases ยท Ads ยท Monetization

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.

UpkeepUpdate frequency

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.

Scorecard2 real differences ยท 4 level
Glow Timer versus Simple Calculator: the parameters behind the verdict, then further details
ParameterGlow TimerSimple Calculator
PriceFree โ€” better$0.99
Update frequencyEvery 3 monthsEvery 5 weeks โ€” better
AdsNoNo
In-app purchasesYesYes
DevicesiPhoneiPhone
Requires iOS17.017.0
Further details โ€” not scored
Size1 MB2 MB
Age rating4+4+
DeveloperKazuma TakahashiSMART BIT K.K

In-app purchases

1 purchases

Glow Timer

One-time1
  • Premium Mode$3.99
1 purchases

Simple Calculator

One-time1
  • Pro Skin Pack$2.99

Questions

Is Glow Timer free?
Glow Timer is free to download, with in-app purchases available.
Is Simple Calculator free?
Simple Calculator costs $0.99, and also offers in-app purchases.
Do Glow Timer or Simple Calculator have ads?
Neither Glow Timer nor Simple Calculator shows ads.
Which is updated more often, Glow Timer or Simple Calculator?
Glow Timer ships an update every 3 months, and Simple Calculator every 5 weeks. Most recently, Glow Timer was updated on November 5, 2026 and Simple Calculator on November 10, 2026.

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