Comparison

Rosettica vs Composr

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

Head to head
About

Rosettica

Features
Read full description

One input. Many languages. Rosettica helps you translate text into several languages on iPhone, iPad and Mac. Choose where translation happens: on your device, on a nearby Mac, or on a translation server you configure. TRANSLATE YOUR WAY Choose your source language or use automatic detection. Select several target languages and save combinations for work, study or everyday use. Follow each language's progress, stop a task, retry a failed translation and keep results that have already finished. START WITH TEXT, PHOTOS OR FILES Paste text, import text and image files, or extract text from photos. On iPhone and iPad, capture text with the camera and review the recognized words before translating. Send text from other apps to Rosettica, then review it in the app. KEEP YOUR WORK ORGANIZED Search translation history, mark favorites and reuse earlier inputs. Copy, export and share completed results. Add glossary terms to specify preferred translations for exact phrases. Optional iCloud backup lets you back up and restore your history. A WORKSPACE FOR EACH DEVICE Use a touch-friendly layout on iPhone and iPad. On Mac, work with source text and translations side by side, keep your main actions within reach and expand the editor when you need more room. SPEAK AND LISTEN Use speech recognition, translation and system voices in conversation mode. Speech recognition may require an internet connection, and available languages and voices depend on your device and Apple services. CHOOSE WHERE YOUR TEXT GOES On-device text translation runs locally after the required model has been downloaded and prepared on a compatible device. Nearby-Mac mode sends text to the Mac you pair with on your local network. Remote mode sends text to the server you select; its operator determines processing and retention. The app identifies the selected processing location so you can choose the workflow that suits your content. On-device translation requires a compatible device, an initial model download and sufficient free storage. Rosettica checks readiness before preparation. Camera input is available on iPhone and iPad. Network-based translation requires an available Mac or configured server; translation quality depends on the selected model and language.

About

Composr

Send personalized, one-on-one text messages to multiple contacts without creating group chats. Utilize personalization tokens, save contact groups, and manage message history for efficient communication.

Highlights
  • Personalized messages with tokens
  • One-on-one text delivery
  • Contact group management
  • Message drafts and templates
  • iOS share extension integration
  • Attachment support
  • Send history and tagging
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Composr lets you send the same message to dozens -- or hundreds -- of contacts, one person at a time. Each recipient gets a personal, individual text. No group chats. No awkward reply-alls. Just one-on-one messages that feel like you wrote each one by hand. HOW IT WORKS Write a single message using personalization tokens like {{firstName}} or {{fullName}}. Select your recipients. Tap Send. Composr walks you through each message using the native iOS compose sheet -- every text is a real, individual iMessage or SMS sent from your number. PERSONALIZE EVERY MESSAGE Use built-in tokens to automatically insert each contact's first name, last name, full name, or nickname. "Hey {{firstName}}, check this out!" becomes "Hey Sarah, check this out!" for Sarah and "Hey Mike, check this out!" for Mike. CONTACT GROUPS Save groups of contacts you message regularly -- your team, your fantasy league, your family. Load a group in one tap and send to everyone without re-selecting contacts every time. DRAFTS & TEMPLATES Save works in progress as drafts. Save frequently used messages as reusable templates. Your compose state is automatically saved so you never lose work. SHARE EXTENSION Found something worth sharing? Use the iOS share sheet from Safari, YouTube, or any app to send a URL or media directly through Composr. Select your recipients and send it out. ATTACHMENTS Attach photos and videos from your library. Every recipient gets the same attachments along with your personalized message. SEND HISTORY & TAGS Every message is logged with recipient, content, and delivery status. Tag batches for easy organization -- "Holiday Greetings", "Product Launch", "Birthday Wishes". Browse past sends and re-select recipients from previous batches. PRIVACY FIRST Composr uses the built-in iOS Messages app to send every text. Your messages are never routed through third-party servers. No account required. PERFECT FOR: - Holiday greetings & seasonal messages - Event invitations & RSVPs - Announcements & updates - Real estate & sales outreach - Team & group communications - Club, league & organization updates - Sharing links, photos & videos with your people - - - - - Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://scottdesapio.com/privacy

Screenshots

Rosettica3 screens
Composr4 screens

Verdict

The call

The clearest difference is update cadence: Composr at every 9 days against Rosettica's monthly. On price, 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

Both are free to download. Rosettica sells 2 one-off in-app purchases and Composr sells 3 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Rosettica ships an update monthly, Composr every 9 days. The most recent releases landed on November 9, 2026 and October 31, 2026 respectively.

Scorecard1 real difference · 9 level
Rosettica versus Composr: the parameters behind the verdict, then further details
ParameterRosetticaComposr
PriceFreeFree
Rating—5.0 (1 ratings) — better
Positive reviews0.0% of reviews—
Number of ratings—1 — better
Update frequencyMonthlyEvery 9 days — better
AdsNoNo
In-app purchasesYesYes
Monetization—Freemium
DevicesiPhone, iPad, Mac — betteriPhone, iPad
Requires iOS17.017.0
Further details — not scored
Size71 MB2 MB
Age rating4+4+
Developer智敏 焦Scott DeSapio

Customer experience

Rosettica

Written reviews1 reviews
Positive0.0%
Neutral100.0%
Negative0.0%

Composr

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

2 purchases

Rosettica

One-time2
  • Small Coffee$1.99
  • Large Coffee$5.99
3 purchases

Composr

Subscriptions2
  • Composr PRO Monthly$2.991 Month
  • Composr PRO Yearly$14.991 Year
One-time1
  • Composr PRO Lifetime$29.99

Questions

Is Rosettica free?
Rosettica is free to download, with in-app purchases available.
Is Composr free?
Composr is free to download, with in-app purchases available.
Do Rosettica or Composr have ads?
Neither Rosettica nor Composr shows ads.
Which is updated more often, Rosettica or Composr?
Rosettica ships an update monthly, and Composr every 9 days. Most recently, Rosettica was updated on November 9, 2026 and Composr on October 31, 2026.

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