# TACTSIM Shot Timer vs sumi

The clearest difference is review sentiment: TACTSIM Shot Timer at 100% against sumi's 50%. TACTSIM Shot Timer also leads on in-app purchases (none vs 2) and update cadence (every 11 days vs every 3 months). On price, ads and device support there is nothing between them.

Both are free to download. sumi sells 2 in-app purchases, starting at $1.99 per month. TACTSIM Shot Timer asks for nothing beyond the download.

TACTSIM Shot Timer ships an update every 11 days, sumi every 3 months. The most recent releases landed on October 4, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | TACTSIM Shot Timer | sumi |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.5 (2 ratings)](https://appshunter.io/ios/app/sumi-quiet-flashcards/id6759393853/reviews)** |
| Number of ratings | — | **2** |
| Positive reviews | **100.0% of reviews** | 50.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 11 days** | Every 3 months |
| Monetization | **Free** | Free with in-app purchases |
| Size | 57 MB | 3 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Tactsim](https://appshunter.io/developer/1727427568) | [EDEN LOXLEY TIGER ROYE](https://appshunter.io/developer/1878403819) |

## What reviewers say

### TACTSIM Shot Timer

[App page](https://appshunter.io/ios/app/tactsim-shot-timer/id6476632905)

This app provides a customizable shot timer for training and practice. It allows users to set and manage intervals, record shot timings, and personalize start and stop sounds. The timer is audio-based and offers adjustable sensitivity for accurate performance.

**Highlights:** Audio peak shot timing, Customizable intervals, Save and load presets, Selectable start/stop sounds, Reset shot timings, Adjustable audio sensitivity

**Features:** macOS Compatibility

**In-app purchases:** none


### sumi

[App page](https://appshunter.io/ios/app/sumi-quiet-flashcards/id6759393853)

This app offers a calm and focused approach to revision using spaced repetition. It allows users to import or create study decks and provides intelligent scheduling for optimal memory retention without distracting gamified elements.

**Highlights:** Spaced repetition with FSRS algorithm, Import Anki (.apkg), CSV, TXT, JSON decks, Offline study support, Detailed progress insights, Calm, distraction-free interface, No account or server required

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| sumi pro - monthly | $1.99 | per month |
| sumi pro - lifetime | $9.99 | one-time |


## Frequently asked questions

### Is TACTSIM Shot Timer free?

TACTSIM Shot Timer is free to download, with no in-app purchases.

### Is sumi free?

sumi is free to download, with in-app purchases available.

### Do TACTSIM Shot Timer or sumi have ads?

Neither TACTSIM Shot Timer nor sumi shows ads.

### Which is updated more often, TACTSIM Shot Timer or sumi?

TACTSIM Shot Timer ships an update every 11 days, and sumi every 3 months. Most recently, TACTSIM Shot Timer was updated on October 4, 2026 and sumi on October 8, 2026.

---

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