Comparison

Hinge Counter vs Foldometer

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

Head to head
About

Hinge Counter

Track your foldable phone's daily openings with this app. View your total openings, daily averages, and historical charts. Customizable widgets display your saved totals on your home or lock screen.

Highlights
  • Daily opening totals
  • All-time opening records
  • 7-, 30-, and 90-day history charts
  • Home and Lock Screen widgets
  • Data export (CSV)
  • Backup and restore functionality
  • Offline use
Features
Read full description

Keep a personal record of your foldable phone openings, with daily totals, clear history charts and widgets. HOW COUNTING WORKS The foreground sensor records a complete close-to-open movement while Hinge Counter is active on an iPhone Duo running iOS 27.1 or later. On iOS 27.2 or later, you can select Shortcuts in Settings and create one opening-only automation with the Record Opening action. Each successful action run adds one Shortcuts entry, including when you run it by hand. Choose one counting method at a time. Earlier folds and missed runs cannot be recovered. This is not a 24/7 counter or a device-lifetime measurement. YOUR OPENINGS, AT A GLANCE See today's recorded openings, your all-time recorded total and a daily average. Sensor observations, Shortcuts entries and manual entries appear separately. SEE YOUR HISTORY Explore 7-, 30- and 90-day charts, or choose All to browse every saved date. Older history does not expire. Longer spans use monthly or yearly chart totals, with daily records still available. The daily average includes zero-count days and today, beginning when your record was created. WIDGETS FOR YOUR SAVED TOTALS Choose all-time, today, this week or this month widgets on your Home Screen or Lock Screen. Weeks follow your device’s first-day-of-week preference; months use local calendar dates. Widgets are snapshots: they do not monitor the hinge, and refresh timing is controlled by iOS. KEEP CONTROL OF YOUR DATA Use the counter without an account or internet connection. There are no ads, tracking or third-party analytics SDKs. Export daily history as CSV, back up your record as JSON, restore a backup or erase your saved counts. Device backups and files you choose to export remain under your control. AN UNSAVED DEMO Try simulated hinge openings in a separate demo that never changes your saved totals. Manual entry is available only in development builds; any manual entries in restored history remain clearly labeled. Devices without a supported hinge can try the unsaved demo. Designed with dark mode, adjustable text sizes and an adaptive interface. Counts describe activity recorded by this app, not hardware health, remaining hinge life, warranty status or folds before installation. No hinge durability rating is assumed. Independent software; not affiliated with or endorsed by Apple. iPhone is a trademark of Apple Inc.

About

Foldometer

Measure precise angles with your device's screen and sensors. Ideal for foldable phones to gauge hinge angles, or as a versatile level, protractor, and slope meter for any iPhone or iPad. Offers features like auto-hold, calibration, and data logging.

Highlights
  • Foldable phone hinge angle measurement
  • Level and bubble level
  • Protractor with draggable arms
  • Slope and pitch meter
  • Camera angle finder
  • Auto-Hold and flip calibration
  • Log readings and export as CSV
  • Home and Lock Screen widgets
Features
Read full description

Your fold, measured. Open iPhone Duo and Foldometer turns its hinge into a precision instrument. Watch the two halves move on screen as you open and close it, read the exact angle between the displays, and feel a gentle tap when you land on a right angle or lie perfectly flat. It's the most fun way to see what your new foldable can do. Not on a foldable? Foldometer is a beautiful level, protractor, slope meter and camera angle finder for every iPhone and iPad. HINGE (IPHONE DUO) • The live angle between the two displays, from closed to fully open • An animated side view of your device that follows the hinge • Stand presets for Easel, Upright, Video call, Laptop and Reading, or save your own, with a tap when you reach them • Set a zero at any position to measure how far the hinge moves • Record the angle over time, then see a chart with the range and peak speed, and share it as an image or CSV FOLD GAUGE (IPHONE DUO) • Rest one half on a surface and lay the other against a second surface • Foldometer combines the hinge with the motion sensors to read each half's angle from horizontal, even when the first surface isn't level LEVEL • Stand iPhone on an edge to read its tilt, shown to a tenth of a degree • Lay it flat and it becomes a bubble level for any surface • Turn it on its side and the reading keeps counting, with "2.4° from level" right where you need it • Hold iPhone against one surface, tap Set Zero, then rotate to the next to read the angle between them SLOPE AND PITCH • Show any slope in degrees, percent grade, millimetres per metre, inches per foot or roof pitch • Set a target such as a 2% patio fall, a ¼ in/ft waste pipe, a 1:12 ramp or a 6/12 roof, and feel a tap when you hit it CAMERA • Measure angles you can't reach, like a roof line or a leaning post, by lining up arms over the camera view • Slopes read against the true horizon from the motion sensors, even if iPhone is tilted • Freeze the frame to fine-tune PROTRACTOR • Two draggable arms on a full 360° scale, with a tick of haptic feedback for every degree • Tap the reading to flip to the reflex angle PRECISION • Flip calibration: take a reading, turn iPhone around in place, take another. Calibrating on its back also corrects for the camera bump or a case. • Auto-Hold freezes the reading the moment iPhone comes to rest, so you can read it after moving away LOG AND WIDGETS • Save any reading with one tap, add notes like "Garage roof pitch", and export everything as CSV • Home Screen and Lock Screen widgets show your fold angle and newest reading DESIGNED FOR APPLE PLATFORMS • Built for iPhone Duo's displays: toolbars and tabs along the side, and layouts that adapt as you fold • Liquid Glass controls, light and dark appearances, and a layered icon • VoiceOver, Dynamic Type and Reduce Motion support • No account, no ads, no tracking. Camera images are never recorded or stored, and your readings stay on your device. A NOTE ON ACCURACY Readings depend on your device's sensors and how it's held. On iPhone Duo, iOS reports the hinge angle and decides how often it updates. Foldometer is a general measuring tool, not a medical or safety device.

Screenshots

Hinge Counter1 screens
Foldometer4 screens

Verdict

The call

The clearest difference is review sentiment: Foldometer at 100% against Hinge Counter's 0%. Foldometer also leads on rating (5.0 vs 1.0). Hinge Counter's advantage is price (Free vs $0.99) and iOS requirement (18.0 vs 27.0). On ratings volume, ads, in-app purchases 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

CostPrice · In-app purchases · Ads · Monetization

Hinge Counter is free to download; Foldometer costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

Foldometer holds the better App Store score, 5.0 against 1.0. Both are backed by a comparable volume of ratings — 1 and 1 respectively. Written reviews point the same way: 0% of Hinge Counter's written reviews are positive against 100% of Foldometer's.

Scorecard5 real differences · 5 level
Hinge Counter versus Foldometer: the parameters behind the verdict, then further details
ParameterHinge CounterFoldometer
PriceFree — better$0.99
Rating1.0 (1 ratings)5.0 (1 ratings) — better
Positive reviews0.0% of reviews100.0% of reviews — better
Number of ratings11
Update frequencyEvery 6 days—
AdsNoNo
In-app purchasesNoNo
MonetizationFree — betterPaid
DevicesiPhone, iPadiPhone, iPad
Requires iOS18.0 — better27.0
Further details — not scored
Size4 MB7 MB
Age rating4+4+
DeveloperWEB3 FZCOMatthew Purcell

Customer experience

Hinge Counter

All ratings1 ratings
Positive0.0%
Neutral0.0%
Negative100.0%
Written reviews1 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

Foldometer

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Hinge Counter

No in-app purchases

None

Foldometer

No in-app purchases

Questions

Is Hinge Counter free?
Hinge Counter is free to download, with no in-app purchases.
Is Foldometer free?
Foldometer costs $0.99, with no in-app purchases.
Which has better reviews, Hinge Counter or Foldometer?
Foldometer is rated higher. Hinge Counter averages 1.0 out of 5 from 1 ratings, while Foldometer averages 5.0 from 1 ratings.
Do Hinge Counter or Foldometer have ads?
Neither Hinge Counter nor Foldometer shows ads.

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