Comparison

ISO Fits vs Easy

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

Head to head
About

ISO Fits

Calculate ISO fits and tolerances for shafts and bores. Supports metric and inch units, displays detailed fit definitions, and includes visual charts and educational videos.

Highlights
  • ISO fits calculation
  • Tolerance class display
  • Metric/inch unit switching
  • Tolerance charts
  • Updated YouTube videos
Features
Read full description

It includes the following features: - Fits calculation: Upon entering the nominal diameter (of either bore or shaft), users select their tolerance classes for bore and shaft. The app then provides the complete ISO fits definition with all relevant values. - Tolerances: Shows the tolerances for the most commonly used ISO tolerance classes. - switch between metric and inch version. - Charts: Shows the most common ISO tolerances classes in a diagram. - Videos: Features the automatically updated latest TSS youtube videos. The results of this application are based on DIN ISO 286 Nominal dimension: 1-3150mm following tolerances included: Shaft: a9, a10, a11, a12, a13, b8, b9, b10, b11, b12, b13, c8, c9, c10, c11, c12, cd5, cd6, cd7, cd8, cd9, cd10, d5, d6, d7, d8, d9, d10, d11, d12, d13, e5, e6, e7, e8, e9, e10, ef3, ef4, ef5, ef6, ef7, ef8, ef9, ef10, f3, f4, f5, f6, f7, f8, f9, f10, fg3, fg4, fg5, fg6, fg7, fg8, fg9, fg10, g3, g4, g5, g6, g7, g8, g9, g10, h1, h2, h3, h4, h5, h6, h7, h8, h9, h10, h11, h12, h13, h14, h15, h16, h17, h18, js1, js2, js3, js4, js5, js6, js7, js8, js9, js10, js11, js12, js13, js14, js15, js16, js17, js18, j5, j6, j7, j8, k3, k4, k5, k6, k7, k8, k9, k10, k11, k12, k13, m3, m4, m5, m6, m7, m8, m9, n3, n4, n5, n6, n7, n8, n9, p3, p4, p5, p6, p7, p8, p9, p10, r3, r4, r5, r6, r7, r8, r9, r10, s3, s4, s5, s6, s7, s8, s9, s10, t5, t6, t7, t8, u5, u6, u7, u8, u9, v5, v6, v7, v8, x5, x6, x7, x8, x9, x10, y6, y7, y8, y9, y10, z6, z7, z8, z9, z10, z11, za6, za7, za8, za9, za10, za11, zb7, zb8, zb9, zb10, zb11, zc7, zc8, zc9, zc10, zc11 Bore: A9, A10, A11, A12, A13, B8, B9, B10, B11, B12, B13, C8, C9, C10, C11, C12, C13, CD6, CD7, CD8, CD9, CD10, D6, D7, D8, D9, D10, D11, D12, D13, E5, E6, E7, E8, E9, E10, EF3, EF4, EF5, EF6, EF7, EF8, EF9, EF10, F3, F4, F5, F6, F7, F8, F9, F10, FG3, FG4, FG5, FG6, FG7, FG8, FG9, FG10, G3, G4, G5, G6, G7, G8, G9, G10, H1, H2, H3, H4, H5, H6, H7, H8, H9, H10, H11, H12, H13, H14, H15, H16, H17, H18, JS1, JS2, JS3, JS4, JS5, JS6, JS7, JS8, JS9, JS10, JS11, JS12, JS13, JS14, JS15, JS16, JS17, JS18, J6, J7, J8, J9, K3, K4, K5, K6, K7, K8, K9, K10, M3, M4, M5, M6, M7, M8, M9, M10, N3, N4, N5, N6, N7, N8, N9, N10, N11, P3, P4, P5, P6, P7, P8, P9, P10, R3, R4, R5, R6, R7, R8, R9, R10, S3, S4, S5, S6, S7, S8, S9, S10, T5, T6, T7, T8, U5, U6, U7, U8, U9, U10, V5, V6, V7, V8, X5, X6, X7, X8, X9, X10, Y6, Y7, Y8, Y9, Y10, Z6, Z7, Z8, Z9, Z10, Z11, ZA6, ZA7, ZA8, ZA9, ZA10, ZA11, ZB7, ZB8, ZB9, ZB10, ZB11, ZC7, ZC8, ZC9, ZC10, ZC11

About

Easy

This app works with specialized hardware to align rotating machinery and belt drives. It offers guided measurement processes, generates reports in PDF and Excel, and includes a searchable user manual. A demo mode allows testing functionality without the hardware.

Highlights
  • All measurement programs in one app
  • Intuitive step-by-step guidance
  • PDF and Excel report generation
  • Include photos and digital signatures in reports
  • Searchable user manual
  • Virtual demo detectors
Features
Read full description

The Easy-Laser® XT Alignment App is used together with the Easy-Laser XT alignment systems. With this combination, you align shafts, couplings, and other rotating machinery, as well as belt drives. Without the hardware, you can still use the app in demo mode to test the functionality. KEY FEATURES • Get all measurement programs in one single app. • The intuitive user interface guides you through the measurement process step by step. • A report is generated in PDF and Excel format. You can include photos with the report, add a digital signature, and share it. • The searchable user manual opens the relevant chapter depending on where in the process you are. • Virtual demo detectors allow you to experience the easy alignment process before you purchase the measuring units. HARDWARE • XT measuring units for shaft alignment – rugged, dust and waterproof according to both IP66 and IP67. Operating times are up to 24 hours of continuous use. • Digital belt alignment tool XT190. • Vibrometer XT280. COMPATIBILITY Verified to work on: • iOS 13/iPadOS 13 or newer This app is designed to work together with the Easy-Laser XT alignment products. They can be purchased separately from your local Easy-Laser distributor. For more information, please visit our web site.

Screenshots

ISO Fits4 screens
Easy4 screens

Verdict

The call

The clearest difference is in-app purchases: Easy at none against ISO Fits's 1. Easy also leads on update cadence (every 2 months vs every 5 months) and ratings volume (19 vs 6). ISO Fits's advantage is rating (4.2 vs 3.9) and review sentiment (95% vs 80%). On price, ads 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

Both are free to download. ISO Fits sells 1 one-off in-app purchase. Easy asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

ISO Fits holds the better App Store score, 4.2 against 3.9. Both are backed by a comparable volume of ratings — 6 and 19 respectively. Written reviews point the same way: 95% of ISO Fits's written reviews are positive against 80% of Easy's.

UpkeepUpdate frequency

ISO Fits ships an update every 5 months, Easy every 2 months. The most recent releases landed on October 16, 2026 and October 2, 2026 respectively.

Scorecard7 real differences · 3 level
ISO Fits versus Easy: the parameters behind the verdict, then further details
ParameterISO FitsEasy
PriceFreeFree
Rating4.2 (6 ratings) — better3.9 (19 ratings)
Positive reviews94.6% of reviews — better80.0% of reviews
Number of ratings619 — better
Update frequencyEvery 5 monthsEvery 2 months — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.613.0 — better
Further details — not scored
Size66 MB518 MB
Age rating4+4+
DeveloperTrelleborg Sealing SolutionsEasy-Laser AB

Customer experience

ISO Fits

All ratings6 ratings
Positive83.3%
Neutral0.0%
Negative16.7%
Written reviews37 reviews
Positive94.6%
Neutral0.0%
Negative5.4%

Easy

All ratings18 ratings
Positive77.8%
Neutral0.0%
Negative22.2%
Written reviews5 reviews
Positive80.0%
Neutral0.0%
Negative20.0%

In-app purchases

1 purchases

ISO Fits

One-time1
  • Full Version with complete ISO286 Standard$1.99
None

Easy

No in-app purchases

Questions

Is ISO Fits free?
ISO Fits is free to download, with in-app purchases available.
Is Easy free?
Easy is free to download, with no in-app purchases.
Which has better reviews, ISO Fits or Easy?
ISO Fits is rated higher. ISO Fits averages 4.2 out of 5 from 6 ratings, while Easy averages 3.9 from 19 ratings.
Do ISO Fits or Easy have ads?
Neither ISO Fits nor Easy shows ads.
Which is updated more often, ISO Fits or Easy?
ISO Fits ships an update every 5 months, and Easy every 2 months. Most recently, ISO Fits was updated on October 16, 2026 and Easy on October 2, 2026.

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