Flatter vs Spirit Level smart
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Flatter
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It's a really simple level. Just tilt your phone.
Spirit Level smart
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Spirit level. Hold the device horizontally and press it against an object. Displays the angle of inclination. Make minor adjustments in advance to accommodate the unique tilt caused by the device's protrusions and case.
Screenshots
Verdict
The clearest difference is in-app purchases: Flatter at none against Spirit Level smart's 1. Flatter also leads on update cadence (fortnightly vs every 2 months) and iOS requirement (12.0 vs 15.6). Spirit Level smart's advantage is ads (none vs shown). On price and device support 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. Spirit Level smart sells 1 one-off in-app purchase. Flatter asks for nothing beyond the download.
Flatter ships an update fortnightly, Spirit Level smart every 2 months. The most recent releases landed on October 29, 2026 and November 4, 2026 respectively.
| Parameter | Flatter | Spirit Level smart |
|---|---|---|
| Price | Free | Free |
| Update frequency | Fortnightly — better | Every 2 months |
| Ads | Yes | No — better |
| In-app purchases | No — better | Yes |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 12.0 — better | 15.6 |
| Further details — not scored | ||
| Size | 24 MB | 24 MB |
| Age rating | 4+ | 4+ |
| Developer | Jeong-soo Park | akira ohmachi |
In-app purchases
Flatter
No in-app purchases
Spirit Level smart
- Remove Ads$1.99
Questions
Is Flatter free?
Is Spirit Level smart free?
Do Flatter or Spirit Level smart have ads?
Which is updated more often, Flatter or Spirit Level smart?
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