Comparison

AI Email Writer vs CubMail

Price, ratings, monetisation and update history for both apps, side by side β€” 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 β€” subject line, opening, body, sign-off β€” 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 β€” 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 β€” 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 β€” 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 β€” 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

CubMail

Features
Read full description

Your email, your servers, your choice. CubMail is a modern email client that connects directly to your providers’ IMAP and SMTP servers. Bring multiple inboxes together, open every folder and stay in control of your data. EVERYDAY EMAIL, DONE WELL β€’ Multiple accounts with instant switching β€’ Inbox, drafts, sent, archive, junk and trash folders β€’ Reply, forward, star, archive, move and delete β€’ Sanitized HTML messages, inline images and attachments β€’ Full composer with To, Cc, Photos and Files β€’ All, Unread and Starred filters β€’ IMAP folder creation and filters covering the entire folder β€’ Compressed profile photo and HTML signature with resizable images β€’ Scheduled automatic replies with server confirmation β€’ Read and delivery receipt requests when supported CONTACTS THAT STAY ORGANIZED Each mailbox has its own CubMail address book. Contacts added to one account never appear in another. You can also import only the contacts you select from your device. PRACTICAL PRIVACY Passwords remain in the device’s secure storage. Message content and attachments travel directly between your device and your IMAP/SMTP servers. CubMail displays Google AdMob ads after gathering privacy choices and offers a one-time purchase to remove them. Your email content, contacts, and IMAP/SMTP credentials are never sent to AdMob. NOTIFICATIONS WHILE THE APP IS CLOSED When enabled, our private encrypted relay reads only the headers required to detect new mail. It never downloads message bodies or attachments. Removing an account also removes its local secret, contacts, and local and remote notifications. MORE INCLUDED Biometric lock, light and dark themes, widget, shortcuts and nine languages. GOOD TO KNOW Your provider must allow password or app-password access. Google and Microsoft OAuth are not available yet.

Screenshots

AI Email Writer4 screens
CubMail4 screens

Verdict

The call

The clearest difference is ads: AI Email Writer at none against CubMail's shown. CubMail's advantage is device support (3 vs 1) and iOS requirement (15.0 vs 18.0). On price, update cadence and in-app purchases there is nothing between them.

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

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

Both are free to download. AI Email Writer sells 3 in-app purchases, starting at $4.99 per 7 days and CubMail sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

AI Email Writer ships an update monthly, CubMail every 2 weeks. Both last shipped on October 31, 2026.

Scorecard3 real differences Β· 3 level
AI Email Writer versus CubMail: the parameters behind the verdict, then further details
ParameterAI Email WriterCubMail
PriceFreeFree
Update frequencyMonthlyEvery 2 weeks β€” better
AdsNo β€” betterYes
In-app purchasesYesYes
DevicesiPhoneiPhone, iPod, Mac β€” better
Requires iOS18.015.0 β€” better
Further details β€” not scored
Size6 MB32 MB
Age rating4+4+
DeveloperPhuc PhamCLYB

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
1 purchases

CubMail

One-time1
  • Remove ads$3.99

Questions

Is AI Email Writer free?
AI Email Writer is free to download, with in-app purchases available.
Is CubMail free?
CubMail is free to download, with in-app purchases available.
Do AI Email Writer or CubMail have ads?
CubMail shows ads; AI Email Writer does not.
Which is updated more often, AI Email Writer or CubMail?
AI Email Writer ships an update monthly, and CubMail every 2 weeks. Most recently, AI Email Writer was updated on October 31, 2026 and CubMail on October 31, 2026.

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