# Retro Flash vs Kendamanomics

The clearest difference is ads: Retro Flash at none against Kendamanomics's shown. Retro Flash also leads on ratings volume (226 vs 54). Kendamanomics's advantage is iOS requirement (13.0 vs 15.6). On price, rating, review sentiment and update cadence there is nothing between them.

Both are free to download. Retro Flash sells 8 one-off in-app purchases and Kendamanomics sells 3 in-app purchases, starting at $7.99 per month. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 4.7 for Retro Flash against 4.6 for Kendamanomics. Both are backed by a comparable volume of ratings — 226 and 54 respectively. Written reviews are what separate them: 83% of Retro Flash's written reviews are positive against 85% of Kendamanomics's.

Both ship on a similar rhythm, roughly every 3 weeks. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Retro Flash | Kendamanomics |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (226 ratings)](https://appshunter.io/ios/app/retro-flash-climbing/id1519582483/reviews)** | [4.6 (54 ratings)](https://appshunter.io/ios/app/kendamanomics/id6470801601/reviews) |
| Number of ratings | **226** | 54 |
| Positive reviews | 82.9% of reviews | **84.6% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 3 weeks | Every 3 weeks |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 162 MB | 100 MB |
| Requires iOS | 15.6 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Arcade Bouldering UG (haftungsbeschrnkt)](https://appshunter.io/developer/1519582485) | [Kendamanomics](https://appshunter.io/developer/1726456132) |

## 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


### Kendamanomics

[App page](https://appshunter.io/ios/app/kendamanomics/id6470801601)

Master Kendama tricks and track your progress with a comprehensive library of over 100 moves. This app connects you with the global Kendama community and ranks top players worldwide.

**Highlights:** Learn over 100 Kendama tricks, Track skill progression, Rank top global players, Connect with Kendama community, Discover new tricks

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Kendamanomics Subscription | $7.99 | per month |
| Kendamanomics Tom's tricks | $5.99 | one-time |
| E.T.'s Tricks | $9.99 | one-time |


## Frequently asked questions

### Is Retro Flash free?

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

### Is Kendamanomics free?

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

### Which has better reviews, Retro Flash or Kendamanomics?

Retro Flash is rated higher. Retro Flash averages 4.7 out of 5 from 226 ratings, while Kendamanomics averages 4.6 from 54 ratings.

### Do Retro Flash or Kendamanomics have ads?

Kendamanomics shows ads; Retro Flash does not.

### Which is updated more often, Retro Flash or Kendamanomics?

Retro Flash ships an update every 3 weeks, and Kendamanomics every 3 weeks. Most recently, Retro Flash was updated on October 24, 2026 and Kendamanomics on October 25, 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.*