Calculator· vs Simple Calculator. +
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Calculator·
This app offers a straightforward calculation experience, focusing on essential functions without unnecessary complexity. It includes basic arithmetic, percentage calculations, and advanced functions like square root. Users can customize the appearance with multiple color schemes and utilize features like result copying and split-screen multitasking on iPad.
- Basic arithmetic operations
- Percentage calculations
- Multiple color schemes
- Copy results
- Square, square root, inverse functions
- iPad Split View support
- Apple Watch support
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A truly no-frills calculator with the perfect blend of features and simplicity. Tired of getting lost in features you don’t use, but wish you had just a few more? Try Calculator· today! Features: • The essentials—add, subtract, multiply, divide, percent • Multiple color schemes • Copy your result (double tap result to copy) • Square, square root, and inverse functions on iPad landscape • Split View for iPad so you can run two apps at once • Apple Watch Support This app contains auto-renewable subscriptions: • Premium Access • 1 month and 1 year durations available Limit one free trial per user. Charged through your iTunes account at confirmation of purchase. Your account will be charged within 24-hours prior to the end of the current period. Subscription automatically renews unless auto-renew is turned off at least 24-hours before the end of the current period. You can manage your subscriptions and turn off auto-renewal from your Account Settings in iTunes after purchase. Any unused portion of a free trial period, if offered, will be forfeited when the user purchases a subscription to that product, where applicable. • Privacy policy: https://www.iubenda.com/privacy-policy/905866 • Terms of use: http://www.timosstudios.com/terms-of-use You can follow the instructions on our website to change or cancel your subscription: http://www.timosstudios.com/how-to-cancel-subscription-on-ios
Simple Calculator. +
This app offers a straightforward and dependable calculator for iPhone and iPad. It includes advanced features like tax calculation, cost/selling price/margin calculations, and memory operations. A free version is available to try before purchasing.
- 12-digit display
- Tax calculation
- Cost, selling price, and gross margin calculations
- Memory operations
- Grand total (GT)
- Percentage calculation
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Simple, reliable, and easy-to-use calculator app for iPhone/ iPad. If you would like to try out the calculator first, download the FREE version of the app from the developer profile. Calculator features:- * 12 digits * Tax calculation * Percentage (%) * Cost/ selling price/ gross margin calculations * Memory operations * Grand total (GT) * Square root * +/- (Sign change) * Arithmetic constant calculation * Digit grouping and decimal mark as per device locale
Screenshots
Verdict
The clearest difference is price: Calculator· at Free against Simple Calculator. +'s $1.99. Calculator· also leads on ratings volume (34K vs 147) and rating (4.9 vs 4.7). Simple Calculator. +'s advantage is in-app purchases (none vs 3) and ads (none vs shown). On update cadence, monetization model, device support and iOS requirement 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
Calculator· is free to download; Simple Calculator. + costs $1.99 up front. Calculator· sells 3 in-app purchases, starting at $0.99 per month. Simple Calculator. + asks for nothing beyond the download.
Calculator· holds the better App Store score, 4.9 against 4.7. That said, the two scores are not equally well evidenced: Calculator· has 34K ratings behind it against 147, so its average is the more settled of the two. Written reviews point the same way: 84% of Calculator·'s written reviews are positive against 73% of Simple Calculator. +'s.
Both ship on a similar rhythm, roughly every 3 months. The most recent releases landed on October 15, 2026 and October 13, 2026 respectively.
| Parameter | Calculator· | Simple Calculator. + |
|---|---|---|
| Price | Free — better | $1.99 |
| Rating | 4.9 (34K ratings) — better | 4.7 (147 ratings) |
| Positive reviews | 84.3% of reviews — better | 72.7% of reviews |
| Number of ratings | 34K — better | 147 |
| Update frequency | Every 3 months | Every 3 months |
| Ads | Yes | No — better |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Devices | iPhone, iPad, iPod, Apple Watch — better | iPhone, iPad, iPod |
| Requires iOS | 15.0 — better | 15.6 |
| Further details — not scored | ||
| Size | 47 MB | 1 MB |
| Age rating | 4+ | 4+ |
| Developer | Tim O's Studios, LLC | tasser gyati |
Customer experience
Calculator·
Simple Calculator. +
Bugs and requests
Calculator·
Reported bugs
3 issues- Crashes when performing long calculations
- Freezes when opening the app
- Incorrect results for some complex calculations
Requested features
4 requests- Add a backspace/undo button
- Implement a history/memory feature
- Provide more customization options
- Reduce frequency of ads
Simple Calculator. +
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Calculator·
- Upgrade App3 Days trial$0.991 Month
- Upgrade App$4.991 Year
- Upgrade App$1.99
Simple Calculator. +
No in-app purchases
Questions
Is Calculator· free?
Is Simple Calculator. + free?
Which has better reviews, Calculator· or Simple Calculator. +?
Do Calculator· or Simple Calculator. + have ads?
Which is updated more often, Calculator· or Simple Calculator. +?
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