# Bubble Level + Measure Kit vs Octo Inventory

The clearest difference is update cadence: Bubble Level + Measure Kit at every 4 months against Octo Inventory's every 11 months. Octo Inventory's advantage is iOS requirement (15.0 vs 17.0). On price, ads, in-app purchases and device support there is nothing between them.

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

Bubble Level + Measure Kit ships an update every 4 months, Octo Inventory every 11 months. The most recent releases landed on October 21, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | Bubble Level + Measure Kit | Octo Inventory |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 12.5% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 4 months** | Every 11 months |
| Monetization | Paid | — |
| Size | 3 MB | 28 MB |
| Requires iOS | 17.0 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Sensonet](https://appshunter.io/developer/793745582) | [OCTO Telematics](https://appshunter.io/developer/308291492) |

## What reviewers say

### Bubble Level + Measure Kit

[App page](https://appshunter.io/ios/app/bubble-level-plus-measure-kit/id806787408)

This utility app turns your device into a high-precision spirit level. Measure angles on any surface with a beautifully designed interface. Available at a special limited-time price.

**Highlights:** High precision spirit level, Angle measurement, Beautifully designed UI, Pocket-sized utility, iPhone and iPad compatible

**Features:** macOS Compatibility, Family Sharing

**In-app purchases:** none


### Octo Inventory

[App page](https://appshunter.io/ios/app/octo-inventory/id1312645676)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Bubble Level + Measure Kit free?

Bubble Level + Measure Kit is free to download, with no in-app purchases.

### Is Octo Inventory free?

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

### Do Bubble Level + Measure Kit or Octo Inventory have ads?

Neither Bubble Level + Measure Kit nor Octo Inventory shows ads.

### Which is updated more often, Bubble Level + Measure Kit or Octo Inventory?

Bubble Level + Measure Kit ships an update every 4 months, and Octo Inventory every 11 months. Most recently, Bubble Level + Measure Kit was updated on October 21, 2026 and Octo Inventory on October 13, 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.*