# B vs Tandem

The clearest difference is in-app purchases: B at none against Tandem's 9. Tandem's advantage is update cadence (monthly vs every 3 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Tandem sells 7 in-app purchases, starting at $1.99 per year. B asks for nothing beyond the download.

B ships an update every 3 months, Tandem monthly. The most recent releases landed on October 14, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | B | Tandem |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | **Monthly** |
| Monetization | — | Free with in-app purchases |
| Size | 40 MB | 104 MB |
| Requires iOS | 15.1 | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Beam Sharjah](https://appshunter.io/developer/1166805884) | [Early ideas Limited](https://appshunter.io/developer/1705671268) |

## What reviewers say

### B

[App page](https://appshunter.io/ios/app/b-now/id1538980365)

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

**In-app purchases:** none


### Tandem

[App page](https://appshunter.io/ios/app/tandem/id6464282026)

Create personalized stories, fact books, and activity ideas for children. Enhance vocabulary, comprehension, and curiosity with playful prompts and expert parent tips. Designed for co-reading and shared discovery to foster bonding and learning.

**Highlights:** Personalized stories, fact books, and activity ideas, Comprehension prompts that feel like play, Gentle parent tips to enrich time together, Beautiful illustrations and engaging text, Private, secure, and easy to use

**Features:** macOS Compatibility, Apple Wallet

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlimited plan (annual) | $1.99 | per year |
| Unlimited plan (monthly) | $2.99 | per month |
| Starter plan (monthly) | $2.99 | per month |
| Unlimited plan (annual) | $29.99 | per year |
| Starter plan (annual) | $29.99 | per year |
| Unlimited Lifetime Access | $1.99 | one-time |
| Unlimited Lifetime Access | $3.99 | one-time |


## Frequently asked questions

### Is B free?

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

### Is Tandem free?

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

### Do B or Tandem have ads?

Neither B nor Tandem shows ads.

### Which is updated more often, B or Tandem?

B ships an update every 3 months, and Tandem monthly. Most recently, B was updated on October 14, 2026 and Tandem on October 27, 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.*