Comparison

OptoFitting vs TIER

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

Head to head
About

OptoFitting

Streamline progressive and single-vision lens fitting with precise, repeatable measurements. This app guides you through capturing key fitting parameters using a 3D printed jig and your device, reducing errors and speeding up the process for eyewear professionals.

Highlights
  • Precise fitting measurements
  • Step-by-step workflow
  • 3D printable jig included
  • Tutorial videos and FAQs
  • Reduces fitting errors
  • Fast workflow for professionals
Features
Read full description

*** 3 months free trial *** Make precise, repeatable fitting measurements for progressive and single‑vision lenses — fast, simple, and professional. Free trial: 3 months free with subscription. What it does: Guides you through measuring key fitting parameters (e.g., fitting height, pantoscopic tilt, vertex distance) for progressive and single‑vision glasses with a clear, step‑by‑step workflow. How it works: After subscribing you’ll receive a downloadable 3D print file (.STL). Print the small jig at a local 3D lab, place the printed tool on the customer’s frame, then follow the in‑app instructions to capture accurate measurements. Resources included: High‑quality tutorial videos, FAQs, and practical tips to improve consistency and reduce fitting errors — available both in the app and at www.faroptic.com.. Who it’s for:Optometrist, Opticians, dispensers, labs, and eyewear professionals who need reliable, repeatable measurements and a fast workflow. Subscription & delivery: Subscription unlocks the .STL download and all premium features; the measuring workflow runs entirely on your device. Privacy and terms: Terms of use follow Apple’s standard EULA — https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Get consistent, professional fitting data in minutes — reduce remakes and speed up your fitting process.

About

TIER

This app uses AI to simplify English text from photos. Select your desired simplification level and get easy-to-understand definitions for words.

Highlights
  • Photo to text conversion
  • AI-powered simplification
  • Adjustable simplification tiers
  • Word definitions
  • Camera input
Features
Read full description

TIER is designed to make simplifying English text as easy as possible. Take a photo of English text with your phone’s camera and the app will convert the photo to text that you can select to be simplified. You can set the “tier” of simplification you prefer and the app will use AI to simplify the text to your desired level. You can also access simple English definitions for any word you select.

Screenshots

OptoFitting3 screens
TIER4 screens

Verdict

The call

The clearest difference is in-app purchases: TIER at none against OptoFitting's 2. TIER also leads on ratings volume (9 vs 1) and iOS requirement (12.0 vs 15.6). On price, rating, review sentiment and update cadence 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. OptoFitting sells 2 in-app purchases, starting at $19.99 per month. TIER asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for OptoFitting against 5.0 for TIER. That said, the two scores are not equally well evidenced: TIER has 9 ratings behind it against 1, so its average is the more settled of the two. Written reviews split almost evenly too, at 100% and 100% positive.

UpkeepUpdate frequency

OptoFitting ships an update monthly, TIER every 6 weeks. The most recent releases landed on October 23, 2026 and October 17, 2026 respectively.

Scorecard4 real differences · 6 level
OptoFitting versus TIER: the parameters behind the verdict, then further details
ParameterOptoFittingTIER
PriceFreeFree
Rating5.0 (1 ratings)5.0 (9 ratings)
Positive reviews100.0% of reviews100.0% of reviews
Number of ratings19 — better
Update frequencyMonthly — betterEvery 6 weeks
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS15.612.0 — better
Further details — not scored
Size16 MB62 MB
Age rating12+4+
DeveloperAlireza NazerForwardNLP, Inc.

Customer experience

OptoFitting

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews4 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

TIER

All ratings9 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews3 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

2 purchases

OptoFitting

Subscriptions2
  • Premium 1 Month(+3 Month free)3 Months trial$19.991 Month
  • Premium 6 Month(+3 Month free)3 Months trial$106.996 Months
None

TIER

No in-app purchases

Questions

Is OptoFitting free?
OptoFitting is free to download, with in-app purchases available.
Is TIER free?
TIER is free to download, with no in-app purchases.
Which has better reviews, OptoFitting or TIER?
OptoFitting and TIER are both rated 5.0 out of 5 on the App Store, from 1 and 9 ratings respectively.
Do OptoFitting or TIER have ads?
Neither OptoFitting nor TIER shows ads.
Which is updated more often, OptoFitting or TIER?
OptoFitting ships an update monthly, and TIER every 6 weeks. Most recently, OptoFitting was updated on October 23, 2026 and TIER on October 17, 2026.

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