Comparison

Proofreader vs IOL Refocus

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

Head to head
About

Proofreader

Enhance your writing with an AI-powered tool that detects and corrects grammar, spelling, and punctuation errors. Achieve clear, concise, and error-free communication for emails, reports, and essays. Supports multiple languages with a user-friendly interface.

Highlights
  • Advanced grammar and spelling check
  • AI-driven error correction
  • User-friendly interface
  • Multiple language support
  • Privacy and security focused
Features
Read full description

Are you tired of embarrassing typos, grammar blunders, or awkward sentences in your emails, reports, or essays? Say goodbye to writing mistakes with Proofreader, your trusted companion for flawless communication. Our AI-driven app elevates your writing to a professional level, making sure your message is clear, concise, and error-free. KEY FEATURES Advanced Grammar & Spelling Check Proofreader uses cutting-edge AI to detect and correct grammar, spelling, and punctuation errors in your text. From subject-verb agreement to comma usage, we make your writing as polished as it can be. Rewrite & Improve Clarity Instantly fix awkward sentences, weak vocabulary, and unclear phrasing so every sentence reads naturally. 30+ Languages Supported Whether you write in English or another language, Proofreader helps you achieve impeccable results. Simple, Fast, Intuitive A clean and easy interface — just paste your text and get a corrected version in seconds. Privacy First Your content is processed securely and we respect your privacy. Whether you are a student, teacher, professional, or writer, Proofreader is your solution for impeccable writing. Enhance your communication today and let your words shine with confidence! Privacy: https://proofreader.ardasen.com/privacy.html Terms: https://proofreader.ardasen.com/terms.html

About

IOL Refocus

Read full description

In cataract surgery, when opting to place the intraocular lens in the ciliary sulcus rather than the capsular bag, a reduction in lens power is often necessary. This adjustment is required because, as the optic is shifted more anteriorly toward the cornea, its effective power increases. The degree of this adjustment depends on the base power of the intraocular lens, with a proportional increase in the difference as the lens power rises. This application offers a scale for calculating values within a standard range of base powers. The calculation assumes that the central corneal power falls within the normal range. \n\nThe resulting numbers are applicable for use with most modern posterior chamber intraocular lenses. The estimated effective lens position for the ciliary sulcus is 4.70 mm, while the assumed effective lens position for the capsular bag is 5.20 mm. IOL Refocus does not provide medical or treatment advice and should not be regarded as such by the user. This tool is designed to assist physicians in choosing the appropriate IOL for a specific patient. It is intended to be utilized alongside a comprehensive ophthalmic examination, as well as the requisite diagnostic tests and measurements necessary for surgery. The calculator's results are not intended to function as medical or surgical instructions, nor are they definitive. The developer cannot guarantee the accuracy of results in every case. Physicians using the tool must independently determine the appropriate treatment for their patients and bear sole responsibility for the refractive outcome. By using it, you waive any claims against IOL Refocus and authors. The calculator's information is provided without warranty, and neither developer nor individuals associated with the app are liable for damages or errors. Users are encouraged to assess the information's reliability themselves.

Screenshots

Proofreader4 screens
IOL Refocus1 screens

Verdict

The call

The clearest difference is in-app purchases: IOL Refocus at none against Proofreader's 2. IOL Refocus also leads on ads (none vs shown). Proofreader's advantage is device support (3 vs 1). On price, update cadence and iOS requirement 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. Proofreader sells 2 in-app purchases, starting at $9.99 per month. IOL Refocus asks for nothing beyond the download.

UpkeepUpdate frequency

Proofreader ships an update every 3 months, IOL Refocus every 4 months. The most recent releases landed on September 17, 2026 and September 9, 2026 respectively.

Scorecard3 real differences · 6 level
Proofreader versus IOL Refocus: the parameters behind the verdict, then further details
ParameterProofreaderIOL Refocus
PriceFreeFree
Rating4.3 (19 ratings) — better—
Number of ratings19 — better—
Update frequencyEvery 3 months — betterEvery 4 months
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS15.0 — better16.0
Further details — not scored
Size7 MB0 MB
Age rating4+17+
DeveloperArda SenPatrik Rajs

In-app purchases

2 purchases

Proofreader

Subscriptions2
  • Monthly Subscription$9.991 Month
  • Yearly Subscription3 Days trial$29.991 Year
None

IOL Refocus

No in-app purchases

Questions

Is Proofreader free?
Proofreader is free to download, with in-app purchases available.
Is IOL Refocus free?
IOL Refocus is free to download, with no in-app purchases.
Do Proofreader or IOL Refocus have ads?
Proofreader shows ads; IOL Refocus does not.
Which is updated more often, Proofreader or IOL Refocus?
Proofreader ships an update every 3 months, and IOL Refocus every 4 months. Most recently, Proofreader was updated on September 17, 2026 and IOL Refocus on September 9, 2026.

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