CallTimer Premium vs Simple Calculator. +
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
CallTimer Premium
This app helps you manage call durations by providing notifications at set intervals. It's ideal for users on fixed-minute calling plans and offers features like call history, one-tap dialing, and customizable alerts. It supports hands-free and headset usage.
- Call duration timer
- Configurable notifications
- Call history logging
- One-tap dialing
- Prefix number support
- Customizable alerts and sounds
- Hands-free compatibility
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Before you start To help CallTimer work properly, check the following in your iPhone's Settings: • Notifications are enabled for CallTimer. • Vibration is enabled. Please note: due to iOS restrictions, the app cannot end calls automatically. About CallTimer CallTimer tracks call duration and notifies you at the time you set. It is ideal for mobile plans that include unlimited calls of up to 5, 10 or another set number of minutes per call. It is also useful for calling services that require a dialing prefix. Premium features 1. Call history Saves the history of calls made through CallTimer. Incoming calls are not recorded. 2. One-tap calling Tap a bookmarked number to make a call. To bookmark a number, swipe left on its row in the call history. 3. Dialing prefixes Add a dialing prefix of your choice. 4. Customization • Set the number of vibrations and notification sounds. • Adjust notification sound volume. • Lock the alarm and call type settings. • Automatically clear the number after a call ends. • Choose the screen shown when the app opens. 5. Handy shortcut Press and hold the delete button in the phone number field to clear the entire number. 6. Hands-free support Supports calls using earphones and hands-free devices.
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 update cadence: CallTimer Premium at fortnightly against Simple Calculator. +'s every 3 months. Simple Calculator. +'s advantage is review sentiment (73% vs 60%) and price ($1.99 vs $3.99). On ads, in-app purchases, 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
CallTimer Premium costs $3.99 and Simple Calculator. + $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.
CallTimer Premium ships an update fortnightly, Simple Calculator. + every 3 months. The most recent releases landed on October 24, 2026 and October 26, 2026 respectively.
| Parameter | CallTimer Premium | Simple Calculator. + |
|---|---|---|
| Price | $3.99 | $1.99 — better |
| Rating | — | 4.7 (147 ratings) — better |
| Positive reviews | 60.4% of reviews | 72.7% of reviews — better |
| Number of ratings | — | 147 — better |
| Update frequency | Fortnightly — better | Every 3 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Free with in-app purchases — better |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 15.0 — better | 15.6 |
| Further details — not scored | ||
| Size | 6 MB | 1 MB |
| Age rating | 4+ | 4+ |
| Developer | Chunxu Qiu | tasser gyati |
Customer experience
CallTimer Premium
Simple Calculator. +
In-app purchases
CallTimer Premium
No in-app purchases
Simple Calculator. +
No in-app purchases
Questions
Is CallTimer Premium free?
Is Simple Calculator. + free?
Do CallTimer Premium or Simple Calculator. + have ads?
Which is updated more often, CallTimer Premium or Simple Calculator. +?
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