Bubble Level & Inclinometer vs TrueLevel
Price, ratings, monetisation and update history for both apps, side by side ā with what reviewers say about each.
Bubble Level & Inclinometer
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Bubble Level & Inclinometer turns your phone into a fast, trustworthy level and angle finder ā for DIY, trades, and everyday fixes. Get a true reading in under a second: ⢠2D bullseye level for flat surfaces ⢠Horizontal & vertical spirit level ⢠Full inclinometer / angle finder in degrees, percent grade, mm/m and roof pitch (x:12) Built to be trusted: ⢠Guided 180° calibration wizard ā calibrate once, trust every reading ⢠Tolerance mode with OK / NEAR / OUT haptic and sound guidance, so you can work without staring at the screen ⢠Confidence bar shows how stable the reading is ⢠Hold / Freeze, relative zero (Set 0), measurement history with CSV export, and a shareable measurement card Perfect for: ⢠Hanging pictures, shelves and frames perfectly straight ⢠Checking roof pitch and slopes ⢠Leveling an RV, trailer, appliance or furniture ⢠Tiling, decking, ramps and stairs ⢠Woodworking angles, miter and crown molding No ads. No limits. No subscriptions. No data collected. Works 100% offline. Most level apps bury the measurement under ads and paywalls. This one doesn't. It stays out of your way, respects your privacy, and just measures ā accurately, every time.
TrueLevel
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TrueLevel turns your iPhone into a bubble level, angle finder, protractor, and plumb tool for carpentry, installation, and DIY checks ā all with a clean, easy-to-read interface. ⢠BUBBLE LEVEL Place your iPhone on a surface to check whether it is level. The dual-axis bubble responds in real time with live degree readouts. ⢠ANGLE FINDER & PROTRACTOR Use the full 360° protractor display to check an angle. Hold your device against a surface and read the displayed angle for cutting, framing, or slope checks. Lock & Hold keeps a reading visible while you move the phone. ⢠PLUMB MODE Check vertical alignment with a dedicated plumb bob display. Ideal for door frames, posts, fences, and wall installations. ⢠HAPTIC CONFIRMATION Feel a subtle tap when the readout reaches level, so you do not have to stare at the screen. ⢠SAVE & REVIEW READINGS (Pro) Save a reading with a job label, edit it, and revisit your organized measurement history later. Saved records stay on your phone. ⢠DEVICE CALIBRATION Zero TrueLevel against a reference surface with a simple two-step calibration. Results depend on device sensors, placement, case, and calibration. FREE MEASUREMENT TOOLS ⢠Bubble level with real-time dual-axis display ⢠Angle finder with full protractor readout ⢠Plumb mode ⢠Lock & Hold ⢠Haptic confirmation ⢠Device calibration and unit controls TRUELEVEL PRO ā CHOOSE YOUR ACCESS ⢠Weekly subscription: eligible new weekly subscribers can try Pro free for 3 days, then the subscription renews weekly at the localized App Store price until canceled ⢠Yearly subscription: billed yearly at the localized App Store price, with no free trial ⢠Lifetime access: a one-time purchase at the localized App Store price, with no trial or renewal Every Pro option unlocks the same saved-work workflow: labeled measurement history, editing, organization, and later reference. Existing lifetime purchasers keep their Pro access. BUILT FOR PROFESSIONALS & DIY TrueLevel is designed for carpenters, contractors, engineers, and anyone who wants a practical clinometer on their phone. No ads, no account, and no internet required for measurements. PRIVACY FIRST TrueLevel collects zero data. No analytics, no tracking, no account required. Your measurements stay on your device. Requires iOS 17.6 or later. Privacy Policy: https://ai-app-generator-sigma.vercel.app/truelevel/privacy.html Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is in-app purchases: Bubble Level & Inclinometer at none against TrueLevel's 1. Bubble Level & Inclinometer also leads on iOS requirement (14.0 vs 17.6). TrueLevel's advantage is update cadence (monthly vs every 4 months). On price, ads and device support there is nothing between them.
Scored on Price Ā· Rating Ā· Positive reviews Ā· Number of ratings Ā· Update frequency Ā· Ads Ā· In-app purchases Ā· Monetization Ā· Best chart rank Ā· Devices Ā· Requires iOS
Both are free to download. TrueLevel sells 1 one-off in-app purchase. Bubble Level & Inclinometer asks for nothing beyond the download.
Bubble Level & Inclinometer ships an update every 4 months, TrueLevel monthly. The most recent releases landed on October 6, 2026 and September 27, 2026 respectively.
| Parameter | Bubble Level & Inclinometer | TrueLevel |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 4 months | Monthly ā better |
| Ads | No | No |
| In-app purchases | No ā better | Yes |
| Devices | iPhone, iPod ā better | iPhone |
| Requires iOS | 14.0 ā better | 17.6 |
| Further details ā not scored | ||
| Size | 22 MB | 3 MB |
| Age rating | 4+ | 4+ |
| Developer | lapnito.cz s.r.o. | Daniil Mukashev |
In-app purchases
Bubble Level & Inclinometer
No in-app purchases
TrueLevel
- TrueLevel Pro$3.99
Questions
Is Bubble Level & Inclinometer free?
Is TrueLevel free?
Do Bubble Level & Inclinometer or TrueLevel have ads?
Which is updated more often, Bubble Level & Inclinometer or TrueLevel?
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