# Poly Parents vs Buff

The clearest difference is review sentiment: Buff at 43% against Poly Parents's 25%. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Both ship on a similar rhythm, roughly every 3 weeks. The most recent releases landed on October 6, 2026 and October 17, 2026 respectively.

## The numbers

| Metric | Poly Parents | Buff |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[3.5 (4 ratings)](https://appshunter.io/ios/app/buff-word-power/id6739328232/reviews)** |
| Number of ratings | — | **4** |
| Positive reviews | 25.0% of reviews | **43.5% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 weeks | Every 3 weeks |
| Monetization | Free | Free |
| Size | 90 MB | 228 MB |
| Requires iOS | **13.0** | 13.1 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Poly Inspiration, Inc.](https://appshunter.io/developer/968089723) | [CREVERSE, Inc.](https://appshunter.io/developer/739652504) |

## What reviewers say

### Poly Parents

[App page](https://appshunter.io/ios/app/poly-parents/id975790127)

This application provides exclusive access for parents to various educational services from Poly, a global leader in education. It offers a convenient and easy way to utilize the company's diverse offerings.

**Highlights:** Exclusive parent access, Convenient service utilization, Access to diverse educational offerings, Global education leader services

**In-app purchases:** none


### Buff

[App page](https://appshunter.io/ios/app/buff-word-power/id6739328232)

This app helps students from specific language academies reinforce vocabulary learned through i-Learning/p-Learning and prepare for word tests. Users can review learned words, track their progress, and level up their 'word power' as they memorize more terms.

**Highlights:** Vocabulary training for tests, Review learned words, Track memorization progress, Level up word power, Character customization, Tablet and phone compatible

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

**In-app purchases:** none


## Frequently asked questions

### Is Poly Parents free?

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

### Is Buff free?

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

### Do Poly Parents or Buff have ads?

Neither Poly Parents nor Buff shows ads.

### Which is updated more often, Poly Parents or Buff?

Poly Parents ships an update every 3 weeks, and Buff every 3 weeks. Most recently, Poly Parents was updated on October 6, 2026 and Buff on October 17, 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.*