# Space Impact Watch vs Letter Launch

The clearest difference is update cadence: Letter Launch at every 3 weeks against Space Impact Watch's every 15 months. Letter Launch also leads on review sentiment (90% vs 72%). Space Impact Watch's advantage is rating (4.3 vs 4.0). On price, ratings volume, ads and in-app purchases there is nothing between them.

Space Impact Watch costs $0.99 and Letter Launch $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Space Impact Watch holds the better App Store score, 4.3 against 4.0. Both are backed by a comparable volume of ratings — 6 and 4 respectively. Written reviews complicate that: 72% of Space Impact Watch's written reviews are positive against 90% of Letter Launch's, so the app with the better star average is not the one people write more warmly about.

Space Impact Watch ships an update every 15 months, Letter Launch every 3 weeks. The most recent releases landed on October 29, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | Space Impact Watch | Letter Launch |
| --- | --- | --- |
| Price | $0.99 | $0.99 |
| Rating | **[4.3 (6 ratings)](https://appshunter.io/ios/app/space-impact-watch/id1550604563/reviews)** | [4.0 (4 ratings)](https://appshunter.io/ios/app/letter-launch/id6474981641/reviews) |
| Number of ratings | **6** | 4 |
| Positive reviews | 72.2% of reviews | **90.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 15 months | **Every 3 weeks** |
| Monetization | Paid | Paid |
| Best chart rank | #176 | **#166** |
| Size | 11 MB | 340 MB |
| Requires iOS | 15.6 | **15.0** |
| Devices | **iPhone, iPad, iPod, Apple Watch** | iPhone, iPad, iPod |
| Age rating | 9+ | 9+ |
| Developer | [Small Water s.r.o.](https://appshunter.io/developer/1188809867) | [Nat Russell](https://appshunter.io/developer/1129535492) |

## What reviewers say

### Space Impact Watch

[App page](https://appshunter.io/ios/app/space-impact-watch/id1550604563)

**Currently charting:** #176 Top Paid · Casual (US App Store)

Relive classic retro arcade shooter memories on your wrist. This game offers eight classic levels with bosses, sharp graphics, and adjustable controls. Compete on a worldwide leaderboard and enjoy an infinite mode for endless alien-blasting action.

**Highlights:** Eight classic levels with bosses, Crispy sharp retro graphics, Adjustable gesture and Digital Crown controls, Three special weapons, Worldwide leaderboard, Infinite mode

**Features:** Apple Watch app

**In-app purchases:** none


### Letter Launch

[App page](https://appshunter.io/ios/app/letter-launch/id6474981641)

**Currently charting:** #166 Top Paid · Word (US App Store)

A unique platformer and word-guessing game for mobile and tablet. Fling yourself through vibrant worlds, utilizing physics-based mechanics and collecting abilities to overcome challenges and defeat robotic foes. Experience classic and action-packed gameplay modes.

**Highlights:** Physics-based platforming, Word guessing mechanics, Unlockable abilities, Unique stage mechanics, Boss battles, Challenge levels, Classic and Action game modes

**In-app purchases:** none


## Frequently asked questions

### Is Space Impact Watch free?

Space Impact Watch costs $0.99, with no in-app purchases.

### Is Letter Launch free?

Letter Launch costs $0.99, with no in-app purchases.

### Which has better reviews, Space Impact Watch or Letter Launch?

Space Impact Watch is rated higher. Space Impact Watch averages 4.3 out of 5 from 6 ratings, while Letter Launch averages 4.0 from 4 ratings.

### Do Space Impact Watch or Letter Launch have ads?

Neither Space Impact Watch nor Letter Launch shows ads.

### Which is updated more often, Space Impact Watch or Letter Launch?

Space Impact Watch ships an update every 15 months, and Letter Launch every 3 weeks. Most recently, Space Impact Watch was updated on October 29, 2026 and Letter Launch on October 30, 2026.

### Which is more popular, Space Impact Watch or Letter Launch?

Space Impact Watch currently peaks at #176 in the App Store charts, and Letter Launch at #166. Chart position reflects recent download velocity rather than total install base.

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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.*