# Retro Flash vs hang!

The clearest difference is in-app purchases: hang! at none against Retro Flash's 8. hang! also leads on rating (5.0 vs 4.7) and review sentiment (100% vs 83%). Retro Flash's advantage is ratings volume (226 vs 30) and iOS requirement (15.6 vs 18.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Retro Flash sells 8 one-off in-app purchases. hang! asks for nothing beyond the download.

hang! holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: Retro Flash has 226 ratings behind it against 30, so its average is the more settled of the two. Written reviews point the same way: 83% of Retro Flash's written reviews are positive against 100% of hang!'s.

Retro Flash ships an update every 3 weeks, hang! every 5 weeks. The most recent releases landed on September 27, 2026 and September 22, 2026 respectively.

## The numbers

| Metric | Retro Flash | hang! |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.7 (226 ratings)](https://appshunter.io/ios/app/retro-flash-climbing/id1519582483/reviews) | **[5.0 (30 ratings)](https://appshunter.io/ios/app/hang-hangboard-timer/id6476608721/reviews)** |
| Number of ratings | **226** | 30 |
| Positive reviews | 82.9% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 5 weeks |
| Monetization | Free with in-app purchases | **Free** |
| Size | 162 MB | 19 MB |
| Requires iOS | **15.6** | 18.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [Arcade Bouldering UG (haftungsbeschrnkt)](https://appshunter.io/developer/1519582485) | [Pawel Burda](https://appshunter.io/developer/1727310957) |

## What reviewers say

### Retro Flash

[App page](https://appshunter.io/ios/app/retro-flash-climbing/id1519582483)

This app helps climbers maximize their spray wall training with unique tools for setting various problems and supports multiple grading systems. It fosters a community for climbers to share and improve their training.

**Highlights:** Spray wall problem setting, Supports symmetrical, partly symmetrical, adjustable, and private walls, Circuit and competition boulder creation, Fontainebleau, Dankyu, and Hueco grading systems, Customizable grading systems, Wall upgrades for new possibilities

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

**In-app purchases (8)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock Rules for Circles | $4.99 | one-time |
| Home Wall Year Pass | $4.99 | one-time |
| 1 Month Upgrade Pass | $8.99 | one-time |
| Additional Wall | $9.99 | one-time |
| Gym Year Pass Tier 1 | $14.99 | one-time |
| Add Gym | $14.99 | one-time |
| Gym Year Pass Tier 2 | $29.99 | one-time |
| 6 Months Upgrade Pass | $44.99 | one-time |

**What reviewers like**

- 👍 Easy to use and intuitive
- 💰 Free to use, affordable one-time fees
- 🏠 Perfect for home walls
- 👥 Great community feature
- 🚀 Fast and functional

**What reviewers complain about**

- 👎 Horrid UI
- 🐛 Massive bugs and data loss
- 🛠️ App is useless when buggy
- ❓ Unclear target audience
- 🧭 Navigation can be challenging

**Reported bugs**

- Cannot see sends anymore
- All boulders set to unclimbed for all users
- Statistics are gone
- Won't let me reset wall
- Won't let me delete walls

**Requested features**

- Add a tick list of all climbs done
- Show number and distribution of grades
- Copy route feature for minor adjustments
- Ability to edit names or grades of existing boulders


### hang!

[App page](https://appshunter.io/ios/app/hang-hangboard-timer/id6476608721)

This app helps climbers train smarter with customizable hangboard timers. Organize workouts into folders, log sessions with notes and RPE, and sync with Apple Health for progress tracking. Designed for efficiency, it streamlines your training routine.

**Highlights:** Customizable hang and rest timers, Workout organization by focus, Session logging with notes and RPE, Apple Health synchronization, Climber-designed interface

**Features:** Apple Watch app

**In-app purchases:** none


## Frequently asked questions

### Is Retro Flash free?

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

### Is hang! free?

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

### Which has better reviews, Retro Flash or hang!?

hang! is rated higher. Retro Flash averages 4.7 out of 5 from 226 ratings, while hang! averages 5.0 from 30 ratings.

### Do Retro Flash or hang! have ads?

Neither Retro Flash nor hang! shows ads.

### Which is updated more often, Retro Flash or hang!?

Retro Flash ships an update every 3 weeks, and hang! every 5 weeks. Most recently, Retro Flash was updated on September 27, 2026 and hang! on September 22, 2026.

---

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