# MapplerK3 vs Valid

The clearest difference is review sentiment: Valid at 78% against MapplerK3's 33%. Valid also leads on rating (4.8 vs 2.9) and update cadence (every 2 days vs fortnightly). MapplerK3's advantage is in-app purchases (none vs 1) and device support (3 vs 1). On price and ads there is nothing between them.

Both are free to download. Valid sells 1 in-app purchase, starting at $12.49 per 7 days. MapplerK3 asks for nothing beyond the download.

Valid holds the better App Store score, 4.8 against 2.9. That said, the two scores are not equally well evidenced: Valid has 9.5K ratings behind it against 8, so its average is the more settled of the two. Written reviews point the same way: 33% of MapplerK3's written reviews are positive against 78% of Valid's.

MapplerK3 ships an update fortnightly, Valid every 2 days. The most recent releases landed on September 28, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | MapplerK3 | Valid |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.9 (8 ratings)](https://appshunter.io/ios/app/mapplerk3/id1443989050/reviews) | **[4.8 (9.5K ratings)](https://appshunter.io/ios/app/valid-compliment-classmates/id6755367062/reviews)** |
| Number of ratings | 8 | **9.5K** |
| Positive reviews | 33.3% of reviews | **78.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Fortnightly | **Every 2 days** |
| Monetization | **Free** | Free with in-app purchases |
| Best chart rank | — | **#12** |
| Size | 33 MB | 72 MB |
| Requires iOS | **13.0** | 18.2 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 12+ |
| Developer | [Wansoo Im](https://appshunter.io/developer/577146208) | [RevueAI, Inc](https://appshunter.io/developer/1853438184) |

## What reviewers say

### MapplerK3

[App page](https://appshunter.io/ios/app/mapplerk3/id1443989050)

This app allows users to create and manage custom interactive maps for data collection. It enables community members or organizations to map amenities and concerns, adding rich media like photos and videos to map points. The platform provides web-based access to all mapped data and allows sharing of interactive maps.

**Highlights:** Customizable interactive map development, Mobile data collection app, Upload real-time data from smartphone, Add text, files, photos, videos, audio to map points, Customize data display, Share interactive maps online

**Features:** macOS Compatibility

**In-app purchases:** none


### Valid

[App page](https://appshunter.io/ios/app/valid-compliment-classmates/id6755367062)

**Currently charting:** #12 Top Free · Social Networking, #109 Top Grossing · Social Networking (US App Store)

An anonymous polling app designed for high school students. Engage in fun, honest questions about friends and classmates, earn points, and discover who is voting for you while maintaining anonymity.

**Highlights:** Anonymous daily polls, Answer questions about contacts, Earn aura points, See who votes for you, Climb leaderboards, Browse school-wide activity

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| God Mode | $12.49 | per 7 days |


## Frequently asked questions

### Is MapplerK3 free?

MapplerK3 is free to download, with no in-app purchases.

### Is Valid free?

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

### Which has better reviews, MapplerK3 or Valid?

Valid is rated higher. MapplerK3 averages 2.9 out of 5 from 8 ratings, while Valid averages 4.8 from 9.5K ratings.

### Do MapplerK3 or Valid have ads?

Neither MapplerK3 nor Valid shows ads.

### Which is updated more often, MapplerK3 or Valid?

MapplerK3 ships an update fortnightly, and Valid every 2 days. Most recently, MapplerK3 was updated on September 28, 2026 and Valid on October 16, 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.*