# BackGroundFlow vs AlertBird

The clearest difference is in-app purchases: BackGroundFlow at none against AlertBird's 3. BackGroundFlow also leads on review sentiment (100% vs 67%). AlertBird's advantage is update cadence (every 3 months vs every 8 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. AlertBird sells 3 in-app purchases, starting at $19.99 per month. BackGroundFlow asks for nothing beyond the download.

BackGroundFlow ships an update every 8 months, AlertBird every 3 months. The most recent releases landed on October 21, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | BackGroundFlow | AlertBird |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[3.3 (3 ratings)](https://appshunter.io/ios/app/alertbird-kids-tracker/id1621698038/reviews)** |
| Number of ratings | — | **3** |
| Positive reviews | **100.0% of reviews** | 66.7% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 8 months | **Every 3 months** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 97 MB | 13 MB |
| Requires iOS | 15.6 | **15.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Dmitry Gaponenko](https://appshunter.io/developer/1376847191) | [PPG TECH LIMITED](https://appshunter.io/developer/1559364289) |

## What reviewers say

### BackGroundFlow

[App page](https://appshunter.io/ios/app/backgroundflow/id1484400419)

Immerse yourself in calming background music for sleep, concentration, or relaxation. This app offers curated sound scenes to gently guide you into peaceful moments during a busy day.

**Highlights:** Calming background music, Curated sound scenes, Promotes restful sleep, Enhances concentration, Tranquil moments

**In-app purchases:** none


### AlertBird

[App page](https://appshunter.io/ios/app/alertbird-kids-tracker/id1621698038)

This parental control app monitors children's online activity, sending instant alerts for dangerous keywords in searches and messages. It allows parents to track multiple devices and manage family groups, ensuring a safer digital environment for kids.

**Highlights:** Track keyboard input, Instant keyword alerts, Family group management, Multi-device tracking, Built-in keyword lists, Push notifications

**Features:** Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| SafeKids | $19.99 | per month |
| SafeFamily | $29.99 | per month |
| Alertbird IAP | $7.99 | one-time |


## Frequently asked questions

### Is BackGroundFlow free?

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

### Is AlertBird free?

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

### Do BackGroundFlow or AlertBird have ads?

Neither BackGroundFlow nor AlertBird shows ads.

### Which is updated more often, BackGroundFlow or AlertBird?

BackGroundFlow ships an update every 8 months, and AlertBird every 3 months. Most recently, BackGroundFlow was updated on October 21, 2026 and AlertBird on October 24, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*