# TinyWatchCalc vs Pf Fidelity

The clearest difference is update cadence: Pf Fidelity at every 5 months against TinyWatchCalc's every 16 months. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

TinyWatchCalc ships an update every 16 months, Pf Fidelity every 5 months. The most recent releases landed on September 28, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | TinyWatchCalc | Pf Fidelity |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 16 months | **Every 5 months** |
| Size | 9 MB | 93 MB |
| Requires iOS | 12.0 | **11.0** |
| Devices | iPhone, iPod, Apple Watch | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Peter Entwistle](https://appshunter.io/developer/955246260) | [Connecta Srls](https://appshunter.io/developer/1073890583) |

## What reviewers say

### TinyWatchCalc

[App page](https://appshunter.io/ios/app/tinywatchcalc/id1030102319)

**Features:** macOS Compatibility

**In-app purchases:** none


### Pf Fidelity

[App page](https://appshunter.io/ios/app/pf-fidelity/id1434839440)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is TinyWatchCalc free?

TinyWatchCalc is free to download, with no in-app purchases.

### Is Pf Fidelity free?

Pf Fidelity is free to download, with no in-app purchases.

### Do TinyWatchCalc or Pf Fidelity have ads?

Neither TinyWatchCalc nor Pf Fidelity shows ads.

### Which is updated more often, TinyWatchCalc or Pf Fidelity?

TinyWatchCalc ships an update every 16 months, and Pf Fidelity every 5 months. Most recently, TinyWatchCalc was updated on September 28, 2026 and Pf Fidelity on October 6, 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.*