# PlantSci vs Reply Right

The clearest difference is update cadence: Reply Right at every 3 days against PlantSci's every 2 weeks. Reply Right also leads on iOS requirement (14.0 vs 16.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. PlantSci sells 1 in-app purchase, starting at $0.99 per month and Reply Right sells 3 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

PlantSci ships an update every 2 weeks, Reply Right every 3 days. The most recent releases landed on October 25, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | PlantSci | Reply Right |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 2 weeks | **Every 3 days** |
| Size | 47 MB | 12 MB |
| Requires iOS | 16.0 | **14.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 17+ | 4+ |
| Developer | [Patrick Pajzer](https://appshunter.io/developer/1770748240) | [Ali Hidimoglu](https://appshunter.io/developer/1799023199) |

## What reviewers say

### PlantSci

[App page](https://appshunter.io/ios/app/plantsci/id6720747993)

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| PlantSci-ProAbo | $0.99 | per month |


### Reply Right

[App page](https://appshunter.io/ios/app/reply-right-ai-replies/id6751948592)

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 5 Credits | $1.99 | one-time |
| 10 Credits | $2.99 | one-time |
| 50 Credits | $8.99 | one-time |


## Frequently asked questions

### Is PlantSci free?

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

### Is Reply Right free?

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

### Do PlantSci or Reply Right have ads?

Neither PlantSci nor Reply Right shows ads.

### Which is updated more often, PlantSci or Reply Right?

PlantSci ships an update every 2 weeks, and Reply Right every 3 days. Most recently, PlantSci was updated on October 25, 2026 and Reply Right on October 7, 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.*