Comparison

TrueLevel vs TrueLevel Bubble Level

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

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 — 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 — 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/

About

TrueLevel Bubble Level

Features
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TrueLevel is a bubble level for your iPhone. Lay the phone on a shelf, a picture frame, a table or a washing machine and read how far it is from level in two ways at once: a bubble that drifts toward the high side, and pitch and roll in degrees, to one decimal place. The big number is the larger of the two tilts, with a short verdict beside it: Level, Almost, Slight tilt, Off or Steep. When the phone is within your tolerance, the bubble and the numbers turn green. WHAT YOU GET • Bubble level — a bullseye vial whose bubble moves toward the high side. • Pitch and roll — each axis has its own vial and its own reading in degrees. • Inclination — an optional third reading: the total angle away from flat. • Zero — tap Zero on any surface and the app shows tilt relative to it. Use it when a surface is not truly flat or a case makes the phone sit unevenly. The zero is remembered until you reset it. • Tolerance — choose how close counts as level: 0.2°, 0.5°, 1.0° or 2.0°. • Haptics — a tap when the phone settles into level. You can switch it off. • Angle log — capture a reading, name it (for example "Top shelf"), and find it later in the Log. Swipe a row to rename or delete it. Angles are shown in degrees, with the decimal separator of your region. The interface is in English, German, Spanish, French, Japanese, Korean, Portuguese (Brazil), Russian, Thai, Vietnamese and Simplified Chinese. FREE AND PRO The level, the pitch, roll and inclination readings, zero, tolerance and haptics are free. TrueLevel Pro, a one-time in-app purchase, unlocks saving readings to the Log. If your Log already has readings, you can keep adding to it without Pro. Unlock and Restore Purchase are in Settings. GOOD TO KNOW • Works in portrait on iPhone, using the phone's motion sensors. Accuracy depends on the sensors in your phone, so zero it on a surface you trust. • Motion is read only while the app is open on screen. • No account and no ads. The readings you save stay on your device; the purchase goes through the App Store.

Screenshots

TrueLevel4 screens
TrueLevel Bubble Level4 screens

Verdict

The call

The clearest difference is update cadence: TrueLevel Bubble Level at fortnightly against TrueLevel's monthly. On price, ads, in-app purchases 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

CostPrice Ā· In-app purchases Ā· Ads Ā· Monetization

Both are free to download. TrueLevel sells 1 one-off in-app purchase and TrueLevel Bubble Level sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

TrueLevel ships an update monthly, TrueLevel Bubble Level fortnightly. The most recent releases landed on November 9, 2026 and October 31, 2026 respectively.

Scorecard1 real difference Ā· 5 level
TrueLevel versus TrueLevel Bubble Level: the parameters behind the verdict, then further details
ParameterTrueLevelTrueLevel Bubble Level
PriceFreeFree
Update frequencyMonthlyFortnightly — better
AdsNoNo
In-app purchasesYesYes
DevicesiPhoneiPhone
Requires iOS17.6 — better18.0
Further details — not scored
Size3 MB12 MB
Age rating4+4+
DeveloperDaniil MukashevIlia Filiaev

In-app purchases

1 purchases

TrueLevel

One-time1
  • TrueLevel Pro$3.99
1 purchases

TrueLevel Bubble Level

One-time1
  • TrueLevel Pro$4.99

Questions

Is TrueLevel free?
TrueLevel is free to download, with in-app purchases available.
Is TrueLevel Bubble Level free?
TrueLevel Bubble Level is free to download, with in-app purchases available.
Do TrueLevel or TrueLevel Bubble Level have ads?
Neither TrueLevel nor TrueLevel Bubble Level shows ads.
Which is updated more often, TrueLevel or TrueLevel Bubble Level?
TrueLevel ships an update monthly, and TrueLevel Bubble Level fortnightly. Most recently, TrueLevel was updated on November 9, 2026 and TrueLevel Bubble Level on October 31, 2026.

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