FuelMizer vs o46scope
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
FuelMizer
Accurately measure the fuel level in partially used canisters and estimate the number of meals you can prepare with the remaining fuel. Utilizes a standard kitchen scale and offers preloaded data for common brands and stoves, with the ability to add custom entries.
- Accurate fuel level measurement
- Estimate meals from remaining fuel
- Supports common brands and sizes
- Add custom canister and stove data
- Utilizes a standard kitchen scale
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Now you can accurately measure the fuel level of any partially used canister with Fuel Mizer. You can also estimate how many meals you can make with that remaining fuel. All you need is a standard kitchen scale! Preloaded with data for many common brands and sizes of canisters and many common backpacking stoves. You can also add and edit custom canister and stove data.
o46scope
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o46scope is an audio measurement app for iPhone and iPad that helps you visualize sound in real time. It supports oscilloscope and FFT spectrum display, allowing you to inspect waveforms and frequency components instantly. The app also supports internal signal generation with Tone1 / Tone2 and test signal (Beep) output, making it useful for quick checks, learning, and simple audio measurement tasks. Key features • Oscilloscope display • FFT spectrum display • Signal tab for signal control • Internal signal generation with Tone1 / Tone2 • Speaker output for tones • Test signal (Beep) output • Adjustable parameters Premium Tone1 / Tone2 internal signal generation is available as a premium feature. It is available without ads. Ideal for users who want waveform visualization, frequency analysis, and signal generation in one app. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is in-app purchases: FuelMizer at none against o46scope's 1. o46scope's advantage is update cadence (every 6 weeks vs every 27 months). On price, ads, device support and iOS requirement there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. o46scope sells 1 in-app purchase, starting at $19.99 per year. FuelMizer asks for nothing beyond the download.
FuelMizer ships an update every 27 months, o46scope every 6 weeks. The most recent releases landed on November 3, 2026 and November 9, 2026 respectively.
| Parameter | FuelMizer | o46scope |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (3 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 3 — better | — |
| Update frequency | Every 27 months | Every 6 weeks — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 13.0 | 13.0 |
| Further details — not scored | ||
| Size | 2 MB | 53 MB |
| Age rating | 4+ | 4+ |
| Developer | LocoDog Design LLC | Shinsuke Tsutsui |
In-app purchases
FuelMizer
No in-app purchases
o46scope
- Premium7 Days trial$19.991 Year
