# Balen Terla vs Sapio

The clearest difference is review sentiment: Sapio at 75% against Balen Terla's 33%. Balen Terla's advantage is in-app purchases (none vs 18) and ads (none vs shown). On price, update cadence and device support there is nothing between them.

Both are free to download. Sapio sells 18 in-app purchases, starting at $6.99 per month. Balen Terla asks for nothing beyond the download.

Balen Terla ships an update every 9 days, Sapio weekly. The most recent releases landed on October 5, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Balen Terla | Sapio |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.7 (61 ratings)](https://appshunter.io/ios/app/sapio-general-knowledge/id6741903694/reviews)** |
| Number of ratings | — | **61** |
| Positive reviews | 33.3% of reviews | **75.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 9 days | **Weekly** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 105 MB | 342 MB |
| Requires iOS | **13.0** | 15.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 12+ |
| Developer | [IX42](https://appshunter.io/developer/1513161082) | [THETYS LAB](https://appshunter.io/developer/1675347984) |

## What reviewers say

### Balen Terla

[App page](https://appshunter.io/ios/app/balen-terla/id6480523983)

Become an observer and register your own cetacean sightings. Discover prime whale watching locations and learn about marine life from the Indian Ocean.

**Highlights:** Register cetacean observations, Discover whale watching spots, Learn about Indian Ocean cetaceans, User sign-in, Observer community

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

**In-app purchases:** none


### Sapio

[App page](https://appshunter.io/ios/app/sapio-general-knowledge/id6741903694)

Learn new facts and test your knowledge with interactive exercises in just 5-10 minutes daily. Explore thousands of concepts across history and civilization through engaging lessons and varied question formats. It's designed for universal access to knowledge, making learning fun and effective for everyone.

**Highlights:** Daily learning sessions, Thousands of historical concepts, Interactive quizzes, Multiple question formats, Progress tracking, Trophy system and streaks

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

**In-app purchases (18)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Sapio - Premium Monthly | $6.99 | per month |
| Sapio Premium - 1 mois | $9.99 | per month |
| Sapio Ruby | $14.99 | per year |
| Sapio Premium - 1 mois | $17.99 | per month |
| Sapio Emerald | $24.99 | per year |
| Sapio Premium - 3 mois | $29.99 | per 3 months |
| Sapio Premium - 1 an | $34.99 | per year |
| Sapio - Premium Yearly | $34.99 | per year |
| Sapio Gold | $39.99 | per year |
| Sapio Premium - 3 months | $39.99 | per 3 months |
| Sapio Premium | $44.99 | per year |
| Sapio Premium - 1 an | $59.99 | per year |
| Sapio Platinum | $59.99 | per year |
| Sapio Diamond | $79.99 | per year |
| Sapio Premium - 1 an | $89.99 | per year |
| Treasure chest | $19.99 | one-time |
| Royal treasure chest | $44.99 | one-time |
| Sapio - Premium Lifetime | $69.99 | one-time |


## Frequently asked questions

### Is Balen Terla free?

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

### Is Sapio free?

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

### Do Balen Terla or Sapio have ads?

Sapio shows ads; Balen Terla does not.

### Which is updated more often, Balen Terla or Sapio?

Balen Terla ships an update every 9 days, and Sapio weekly. Most recently, Balen Terla was updated on October 5, 2026 and Sapio 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.*