# CallTimer Premium vs Simple Calculator. +

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.

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.

## The numbers

| Metric | CallTimer Premium | Simple Calculator. + |
| --- | --- | --- |
| Price | $3.99 | **$1.99** |
| Rating | — | **[4.7 (147 ratings)](https://appshunter.io/ios/app/simple-calculator-plus/id1324927779/reviews)** |
| Number of ratings | — | **147** |
| Positive reviews | 60.4% of reviews | **72.7% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 3 months |
| Monetization | Paid | **Free with in-app purchases** |
| Size | 6 MB | 1 MB |
| Requires iOS | **15.0** | 15.6 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Chunxu Qiu](https://appshunter.io/developer/1239647293) | [tasser gyati](https://appshunter.io/developer/1324926550) |

## What reviewers say

### CallTimer Premium

[App page](https://appshunter.io/ios/app/calltimer-premium-x-min-calls/id1222417066)

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.

**Highlights:** Call duration timer, Configurable notifications, Call history logging, One-tap dialing, Prefix number support, Customizable alerts and sounds, Hands-free compatibility

**Features:** Vision Pro support

**In-app purchases:** none


### Simple Calculator. +

[App page](https://appshunter.io/ios/app/simple-calculator-plus/id1324927779)

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.

**Highlights:** 12-digit display, Tax calculation, Cost, selling price, and gross margin calculations, Memory operations, Grand total (GT), Percentage calculation

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is CallTimer Premium free?

CallTimer Premium costs $3.99, with no in-app purchases.

### Is Simple Calculator. + free?

Simple Calculator. + costs $1.99, with no in-app purchases.

### Do CallTimer Premium or Simple Calculator. + have ads?

Neither CallTimer Premium nor Simple Calculator. + shows ads.

### Which is updated more often, CallTimer Premium or Simple Calculator. +?

CallTimer Premium ships an update fortnightly, and Simple Calculator. + every 3 months. Most recently, CallTimer Premium was updated on October 24, 2026 and Simple Calculator. + on October 26, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*