# Koko Messages vs Ring Sizer

The clearest difference is in-app purchases: Koko Messages at none against Ring Sizer's 3. Koko Messages also leads on review sentiment (100% vs 71%). Ring Sizer's advantage is update cadence (every 3 weeks vs every 2 months) and ratings volume (35 vs 11). On price, rating, ads and device support there is nothing between them.

Both are free to download. Ring Sizer sells 3 in-app purchases, starting at $3.99 per 7 days. Koko Messages asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 4.9 for Koko Messages against 4.8 for Ring Sizer. Both are backed by a comparable volume of ratings — 11 and 35 respectively. Written reviews are what separate them: 100% of Koko Messages's written reviews are positive against 71% of Ring Sizer's.

Koko Messages ships an update every 2 months, Ring Sizer every 3 weeks. The most recent releases landed on October 16, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | Koko Messages | Ring Sizer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.9 (11 ratings)](https://appshunter.io/ios/app/koko-messages/id6736853270/reviews)** | [4.8 (35 ratings)](https://appshunter.io/ios/app/ring-sizer-ring-measure/id6739887211/reviews) |
| Number of ratings | 11 | **35** |
| Positive reviews | **100.0% of reviews** | 71.4% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 3 weeks** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 4 MB | 29 MB |
| Requires iOS | 17.0 | 17.0 |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 12+ | 4+ |
| Developer | [KokoSphere LLC](https://appshunter.io/developer/1773505806) | [Ramkumar Vellaisamy](https://appshunter.io/developer/1706335914) |

## What reviewers say

### Koko Messages

[App page](https://appshunter.io/ios/app/koko-messages/id6736853270)

Leave messages tied to specific real-world locations. Recipients will only see your message when they are physically present at that spot. It's a unique way to share reminders, surprises, or memories with yourself or others.

**Highlights:** Leave messages at real-world locations, Messages appear when recipients are nearby, Set proximity for message visibility, Leave reminders for yourself or friends, Surprise friends with location-based messages, Capture memories tied to specific places, Revisit your past messages from your profile

**Features:** macOS Compatibility

**In-app purchases:** none


### Ring Sizer

[App page](https://appshunter.io/ios/app/ring-sizer-ring-measure/id6739887211)

Instantly determine your precise ring size for online shopping, custom orders, or gift purchases. Offers multiple international sizing standards and saves your measurements for future use. Get accurate results with clear, step-by-step instructions.

**Highlights:** Instant ring size measurement, Support for multiple international sizing standards, Save and access size history, Step-by-step measurement guidance, Measure for custom ring widths

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Ring Sizer Weekly | $3.99 | per 7 days |
| Ring Sizer Yearly | $9.99 | per year |
| Ring Sizer Lifetime | $19.99 | one-time |


## Frequently asked questions

### Is Koko Messages free?

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

### Is Ring Sizer free?

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

### Which has better reviews, Koko Messages or Ring Sizer?

Koko Messages is rated higher. Koko Messages averages 4.9 out of 5 from 11 ratings, while Ring Sizer averages 4.8 from 35 ratings.

### Do Koko Messages or Ring Sizer have ads?

Neither Koko Messages nor Ring Sizer shows ads.

### Which is updated more often, Koko Messages or Ring Sizer?

Koko Messages ships an update every 2 months, and Ring Sizer every 3 weeks. Most recently, Koko Messages was updated on October 16, 2026 and Ring Sizer on October 8, 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.*