Comparison

Proofn vs Parallel Space, Multiple Apps

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

Head to head
About

Proofn

This app allows users to edit or delete unread emails and group messages, even after sending. It also supports inline video, photo, and voice note attachments, offering enhanced privacy and control over communications.

Highlights
  • Edit unread emails and attachments
  • Delete unread messages
  • Inline video, photo, and voice note attachments
  • Private group messaging
  • End-to-end and zero-access encryption
  • Organize messages by sender or group
Read full description

Correct your mistakes forever in unread emails, group messages, and attachments when you and your recipients create free @Proofn accounts. To err is human. That is why more people prefer to email and chat on the free Proofn app. * Create your @proofn.com email account and email your contacts. Their replies will go to your inbox. * Your emails contain signup links in the signatures so others can use Proofn. * When you email their Proofn accounts, they become your Proofn contacts. TAKE CONTROL AFTER YOU HIT “SEND”- until your recipients read your email. * Retrieve and edit any unread email and/or attachment you sent to your Proofn contacts, or delete the message entirely. * Meet deadlines. Your edits won’t change the original email timestamp or its place in a recipient’s inbox. Emails are always read as original and on time. NEVER STRUGGLE- with what to write in your email again. * Recall and update private personalized notes about any Proofn contact while you email them. CREATE AND MANAGE PRIVATE GROUPS- with your Proofn contacts. * Send group messages directly to their inboxes. * Retrieve and edit any unread group message and/or attachment you sent, or delete the group message entirely. * Meet group deadlines. Your edits won’t change the original group message timestamp or its place in their inboxes. Group messages are always read as original and on time. * Only unread emails and group messages are editable and deletable. So there’s no gaslighting risk. * Effortlessly eliminate email and group messages that impede collaboration. EXPRESS YOUR TRUE SELF- make every email and group message you send more personal and meaningful. * Add PeekviewsTM-short inline video attachments that silently autoplay to your emails and group messages. * Take photos on Proofn to add as inline attachments in your emails and group messages. * Record and attach voice notes to your emails and group messages. * Add or remove inline/regular attachments and voice notes (including PeekViews) in any unread email and group message you sent. COMMUNICATE PRIVATELY AND MORE EFFICIENTLY -when you email or chat with individuals and groups. * Want to chat? Toggle chat mode. * Swipe through messages seamlessly. * Convert emails and group messages to easy-to-print PDFs. * Proofn® organizes emails by the sender's name, group name, and non-Proofn email address, so it’s easier to find the message you’re looking for. * Create new folders for related emails and group messages so they are easier to find. * Your communications are always safe with both end-to-end and zero-access encryption for unmatched privacy.

About

Parallel Space, Multiple Apps

Create a private space on your phone to manage multiple accounts from the same app simultaneously. Easily separate personal and work profiles without needing multiple devices or constant logging in and out.

Highlights
  • Log in to multiple accounts of the same app
  • Keep personal and work profiles separate
  • Use social and messaging apps easily
  • Maintain privacy with independent accounts
  • Simplify digital life on one device
Features
Read full description

Parallel Space − Dual Accounts lets you create a private space on your phone to log in to multiple accounts simultaneously. Easily manage your personal and work profiles without switching devices or logging in and out repeatedly. Do you often switch between multiple social accounts? Need to keep work and personal apps separate? Tired of using two phones just to stay connected? We’ve got you covered. With Parallel Space − Dual Accounts, you can: Log in to multiple accounts of the same app at once Keep personal and work profiles active simultaneously Use popular social and messaging apps with ease Enjoy smooth performance with no interference between accounts Maintain privacy—each account runs independently Simplify your digital life and stay connected across all your accounts—on one device. Privacy Policy: https://parallel-space-dual-accounts.blogspot.com/2026/03/privacy-policy.html Terms of Use: https://parallel-space-dual-accounts.blogspot.com/2026/03/terms-of-use.html

Screenshots

Proofn4 screens
Parallel Space, Multiple Apps3 screens

Verdict

The call

The clearest difference is rating: Proofn at 5.0 against Parallel Space, Multiple Apps's 4.2. Proofn also leads on in-app purchases (none vs 4) and ads (none vs shown). Parallel Space, Multiple Apps's advantage is ratings volume (30 vs 1) and iOS requirement (17.0 vs 26.0). On price, update cadence 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. Parallel Space, Multiple Apps sells 4 in-app purchases, starting at $1.99 per 7 days. Proofn asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Proofn holds the better App Store score, 5.0 against 4.2. That said, the two scores are not equally well evidenced: Parallel Space, Multiple Apps has 30 ratings behind it against 1, so its average is the more settled of the two.

UpkeepUpdate frequency

Proofn ships an update every 4 weeks, Parallel Space, Multiple Apps monthly. The most recent releases landed on November 3, 2026 and November 13, 2026 respectively.

Scorecard6 real differences · 4 level
Proofn versus Parallel Space, Multiple Apps: the parameters behind the verdict, then further details
ParameterProofnParallel Space, Multiple Apps
PriceFreeFree
Rating5.0 (1 ratings) — better4.2 (30 ratings)
Positive reviews—100.0% of reviews
Number of ratings130 — better
Update frequencyEvery 4 weeks — betterMonthly
AdsNo — betterYes
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPadiPhone, iPad
Requires iOS26.017.0 — better
Further details — not scored
Size35 MB24 MB
Age rating17+4+
DeveloperMyabuy, LLCJay Lakhani

Customer experience

Proofn

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

Parallel Space, Multiple Apps

All ratings26 ratings
Positive80.8%
Neutral7.7%
Negative11.5%
Written reviews2 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Proofn

No in-app purchases

4 purchases

Parallel Space, Multiple Apps

Subscriptions3
  • Weekly Pro Access$1.997 Days
  • Monthly Pro Access$3.991 Month
  • Yearly Pro Access$9.991 Year
One-time1
  • Lifetime Pro Access$19.99

Questions

Is Proofn free?
Proofn is free to download, with no in-app purchases.
Is Parallel Space, Multiple Apps free?
Parallel Space, Multiple Apps is free to download, with in-app purchases available.
Which has better reviews, Proofn or Parallel Space, Multiple Apps?
Proofn is rated higher. Proofn averages 5.0 out of 5 from 1 ratings, while Parallel Space, Multiple Apps averages 4.2 from 30 ratings.
Do Proofn or Parallel Space, Multiple Apps have ads?
Parallel Space, Multiple Apps shows ads; Proofn does not.
Which is updated more often, Proofn or Parallel Space, Multiple Apps?
Proofn ships an update every 4 weeks, and Parallel Space, Multiple Apps monthly. Most recently, Proofn was updated on November 3, 2026 and Parallel Space, Multiple Apps on November 13, 2026.

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