# Bulbes vs Observo

The clearest difference is in-app purchases: Observo at none against Bulbes's 2. Observo also leads on update cadence (every 3 weeks vs every 3 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Bulbes sells 2 one-off in-app purchases. Observo asks for nothing beyond the download.

Bulbes ships an update every 3 months, Observo every 3 weeks. Both last shipped on November 1, 2026.

## The numbers

| Metric | Bulbes | Observo |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/bulbes-lightbulbs-memo/id884123751/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 82.4% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 3 weeks** |
| Monetization | Free | — |
| Size | 13 MB | 174 MB |
| Requires iOS | 9.0 | 9.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [LLC Sport Star Management](https://appshunter.io/developer/415728944) | [Unit Solutions AG](https://appshunter.io/developer/639539274) |

## What reviewers say

### Bulbes

[App page](https://appshunter.io/ios/app/bulbes-lightbulbs-memo/id884123751)

This app helps you catalog all the light bulbs in your home, organizing them by room and type. Avoid the frustration of buying the wrong bulbs by keeping a detailed record of what you need for each fixture.

**Highlights:** Catalog light bulbs, Organize by room, Record bulb types, Track socket compatibility, Easy to use interface, User feedback welcome

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove restrictions | $1.99 | one-time |
| Remove restrictions for all objects | $2.99 | one-time |


### Observo

[App page](https://appshunter.io/ios/app/observo/id1017780435)

**In-app purchases:** none


## Frequently asked questions

### Is Bulbes free?

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

### Is Observo free?

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

### Do Bulbes or Observo have ads?

Neither Bulbes nor Observo shows ads.

### Which is updated more often, Bulbes or Observo?

Bulbes ships an update every 3 months, and Observo every 3 weeks. Most recently, Bulbes was updated on November 1, 2026 and Observo on November 1, 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.*