Comparison

ReWriteMe vs Certify

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

Head to head
About

ReWriteMe

Features
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ReWriteMe is a focused AI writing assistant for turning rough drafts into clear messages, emails, notes, captions, and replies. Type, paste, or dictate a draft, then choose the tone that fits: friendly, professional, concise, formal, casual, or supportive. ReWriteMe rewrites your text in the original language, the system language, or another supported language, so you can polish and translate in one flow. Use ReWriteMe to: - Rewrite emails and messages before sending - Fix grammar and make wording clearer - Make replies warmer, shorter, or more professional - Dictate an idea and clean it up - Polish captions, notes, and everyday text - Regenerate, copy, or replace the result quickly ReWriteMe uses on-device writing models when available, including Apple Intelligence and a local MLX fallback on supported devices. It is built for quick edits, not long documents: open the composer, paste the draft, pick a tone, and send a cleaner version.

About

Certify

Features
Read full description

Need a certificate for a student, an employee, a team or a class in the next five minutes? Certify turns a few details into a classic, print-ready certificate PDF — no design app or template hunting. Choose a template, enter the recipient, the award or course, and who signs it, then create the PDF. Print it, share it or save it to Files. • FOUR TEMPLATES — Award (Certificate of Achievement), Diploma, Completion (Certificate of Completion) and Participation (Certificate of Participation), each with matching wording such as “has successfully completed”. • YOUR OWN HEADING — keep the standard title or type your own, like “Employee of the Month” or “Star Reader”. • THE DETAILS THAT MATTER — recipient name, award or course title, an optional organization name and a date written any way you like. • SIGNATURE LINE — the signer's name and title under a signature line (or “Authorized signature” if you leave the title blank), next to the date. • CLASSIC LOOK — landscape US Letter with a double border, corner ornaments, warm gold accents and a seal emblem, ready for card stock or plain paper. • PRINT, SHARE OR SAVE — one tap to print, share or save the PDF to Files. Good to know: Certify uses a single classic design — there are no custom colors, fonts, logos or photos — and a pasted list of names becomes one PDF with a certificate per name. Sign it by hand after printing. Everything is created on your iPhone — nothing is uploaded and no account is needed. Try it free — 3 certificate exports. A one-time $4.99 purchase unlocks unlimited certificates. No subscription, no ads. Questions: overlapmarr@gmail.com

Screenshots

ReWriteMe4 screens
Certify3 screens

Verdict

The call

The clearest difference is update cadence: Certify at every 10 days against ReWriteMe's every 3 weeks. Certify also leads on iOS requirement (16.0 vs 26.0). ReWriteMe's advantage is device support (3 vs 1). On price, ads and in-app purchases 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. ReWriteMe sells 5 one-off in-app purchases and Certify sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

ReWriteMe ships an update every 3 weeks, Certify every 10 days. The most recent releases landed on October 14, 2026 and October 24, 2026 respectively.

Scorecard3 real differences · 3 level
ReWriteMe versus Certify: the parameters behind the verdict, then further details
ParameterReWriteMeCertify
PriceFreeFree
Update frequencyEvery 3 weeksEvery 10 days — better
AdsNoNo
In-app purchasesYesYes
DevicesiPhone, iPad, Mac — betteriPhone
Requires iOS26.016.0 — better
Further details — not scored
Size37 MB1 MB
Age rating4+4+
DeveloperAntoine BarraultJhomar Maravillas

In-app purchases

5 purchases

ReWriteMe

One-time5
  • Tiny Tip$0.99
  • Small Tip$1.99
  • Medium Tip$4.99
Show 2 more
  • Large Tip$9.99
  • Generous Tip$19.99
1 purchases

Certify

One-time1
  • Unlock Unlimited$4.99

Questions

Is ReWriteMe free?
ReWriteMe is free to download, with in-app purchases available.
Is Certify free?
Certify is free to download, with in-app purchases available.
Do ReWriteMe or Certify have ads?
Neither ReWriteMe nor Certify shows ads.
Which is updated more often, ReWriteMe or Certify?
ReWriteMe ships an update every 3 weeks, and Certify every 10 days. Most recently, ReWriteMe was updated on October 14, 2026 and Certify on October 24, 2026.

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