Comparison

AI Email Writer vs Fasti

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

Head to head
About

AI Email Writer

Features
Read full description

You know what you need to say. Turning it into an email that sounds right is the part that eats twenty minutes. Type one line about the situation, pick the context and tone, and get a complete email — subject line, opening, body, sign-off — ready to copy into your mail app and send. This is not another inbox. It is the writing step that happens before you hit send. You steer the draft with real controls instead of guessing at prompts: seven contexts (work, sales, support, academic, job search, networking, personal), nine goals like follow-up, apology, proposal or reminder, ten tones from formal to empathetic, three lengths, six languages. Change one chip, regenerate, and the whole email shifts with it. WHAT YOU GET - A finished, send-ready email from a one-sentence brief — subject line included, no blank page to stare at - Wording that matches the moment: pick formal, persuasive, apologetic, grateful, urgent or empathetic and the draft changes with it - A reply to any message you paste in, written in the tone and goal you choose - Cleaner writing before it goes out: grammar and clarity review, instant rewording, and translation across six languages - 22 ready-made templates for meetings, cover letters, refunds, cold outreach and more — plus your own saved ones with reusable name placeholders - Everything you have written, searchable by keyword and context, exportable as CSV or PDF PERFECT FOR - Professionals who write the same awkward emails every week and want them done in a minute - Job seekers sending cover letters, interview follow-ups and referral requests - Sales and support teams that need outreach, follow-ups and escalations to land right - Anyone writing in a second language who wants to sound fluent and appropriate WHY NOT JUST USE A CHAT APP? Because you would retype the same setup every time. Here your context, tone, goal, length and language are one-tap controls, your best emails are saved as reusable templates, and your history is right there to search — instead of scrolling back through a chat thread hunting for the version that worked. PRIVACY No account, no ads, no tracking. Your drafts, templates and history live in the app on your device. Sending text to the AI is opt-in and you approve it before anything leaves your phone. Voice dictation uses the microphone only while the recording screen is open. FULL ACCESS Full access unlocks unlimited email generation, all ten tones, all six languages, smart reply, grammar check, paraphrase and translate, voice dictation, and unlimited history and custom templates. Choose weekly, yearly, or a one-time lifetime purchase. AI drafting connects to OpenAI using an API key you add once in Settings. Write the email you have been putting off — open the Compose tab, describe it in one line, and send it in the next minute. Terms of Use (EULA): https://web-levi.web.app/terms Privacy Policy: https://web-levi.web.app/privacy-policy Questions? tphuc.work@gmail.com

About

Fasti

Features
Read full description

Your semester, finally sorted. Snap a timetable, syllabus, roster, or schedule and turn it into real calendar events without typing everything one by one. Then Fasti turns your courses into a full study workspace with grades, AI flashcards, and a leaderboard that makes studying feel like less of a grind. IMPORT A SCHEDULE • Turn screenshots, PDFs, and pasted text into events • Pull class times, deadlines, exams, and recurring schedules into your calendar • Review each import before it is added STUDY SMARTER • Track weighted assignments and see your live grade and GPA • Learn what you need on the final • Generate AI flashcards from your own syllabus and course content • Earn XP for real study work and climb a leaderboard with friends • Run Pomodoro sessions with built-in breaks PLAN YOUR WEEK • Clear day, week, and month views • Recurring events, reminders, tasks, notes, locations, colors, and priorities • Ask Planner to create or move plans, then review the before-and-after preview WORK, MONEY, AND PEOPLE • Track shifts, wages, commissions, expenses, paydays, and expected pay • Share only the schedules or categories you choose • Chat, propose a different time, and accept or decline changes • Keep accepted changes in sync Optional cloud backup and device-calendar sync keep your schedule available across devices. Sharing is opt-in and you choose what others can see. Free to start. Plus and Pro unlock more imports, planner help, sync, and deeper study tools. Subscriptions renew automatically and can be managed in your App Store account. Terms of Use (EULA): https://getfasti.com/terms Privacy Policy: https://getfasti.com/privacy

Screenshots

AI Email Writer4 screens
Fasti4 screens

Verdict

The call

The clearest difference is update cadence: Fasti at every 3 days against AI Email Writer's monthly. Fasti also leads on device support (3 vs 1) and iOS requirement (15.0 vs 18.0). On price, ads and in-app purchases there is nothing between them.

Scored on Price Ā· Rating Ā· Positive reviews Ā· Number of ratings Ā· Update frequency Ā· Ads Ā· In-app purchases Ā· Monetization Ā· Best chart rank Ā· Devices Ā· Requires iOS

CostPrice Ā· In-app purchases Ā· Ads Ā· Monetization

Both are free to download. AI Email Writer sells 3 in-app purchases, starting at $4.99 per 7 days and Fasti sells 10 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

AI Email Writer ships an update monthly, Fasti every 3 days. Both last shipped on October 31, 2026.

Scorecard3 real differences Ā· 3 level
AI Email Writer versus Fasti: the parameters behind the verdict, then further details
ParameterAI Email WriterFasti
PriceFreeFree
Update frequencyMonthlyEvery 3 days — better
AdsNoNo
In-app purchasesYesYes
DevicesiPhoneiPhone, iPad, iPod — better
Requires iOS18.015.0 — better
Further details — not scored
Size6 MB81 MB
Age rating4+4+
DeveloperPhuc PhamNathanael Essousse

In-app purchases

3 purchases

AI Email Writer

Subscriptions2
  • Weekly Premium$4.997 Days
  • Annual Premium$24.991 Year
One-time1
  • Lifetime Premium$49.99
10 purchases

Fasti

Subscriptions5
  • Fasti Plus Monthly7 Days trial$4.991 Month
  • Fasti Pro monthly7 Days trial$9.991 Month
  • Fasti Pro Quarterly$24.993 Months
Show 2 more
  • Fasti Plus (year)14 Days trial$44.991 Year
  • Fasti pro (yearly)14 Days trial$89.991 Year
One-time5
  • Fasti Theme: Ramadan Lantern$3.99
  • Fasti Theme: Australia Day$3.99
  • Fasti Theme: Republic Day$3.99
Show 2 more
  • Fasti Theme: Spain National Day$3.99
  • Fasti Upload Pack: 2$3.99

Questions

Is AI Email Writer free?
AI Email Writer is free to download, with in-app purchases available.
Is Fasti free?
Fasti is free to download, with in-app purchases available.
Do AI Email Writer or Fasti have ads?
Neither AI Email Writer nor Fasti shows ads.
Which is updated more often, AI Email Writer or Fasti?
AI Email Writer ships an update monthly, and Fasti every 3 days. Most recently, AI Email Writer was updated on October 31, 2026 and Fasti on October 31, 2026.

Other comparisons