Comparison

Mail Princess vs LETTRIX

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

Head to head
About

Mail Princess

Send checks, letters, postcards, and faxes directly from your mobile device. This app allows you to mail documents and checks as easily as sending an email, streamlining your business and personal correspondence.

Highlights
  • Send checks by mail from phone
  • Mail letters and postcards
  • Fax documents
  • Automated mailing and faxing
Features
Read full description

Automated Check and Document Mailing & Faxing. Send checks by mail. Just like a check from your bank account, but from your phone. Also, take pics and send letter, postcards, or fax.

About

LETTRIX

Create and send personalized letters and postcards from your device. The service prints, stamps, and mails your custom messages to any US destination, with options for scheduling future delivery.

Highlights
  • Create custom letters and postcards
  • Add photos and signatures
  • Print and mail to US destinations
  • Schedule future mailings
  • Multiple templates available
  • Saved recipient lists
  • Upload documents/images
Features
Read full description

LETTRIX allows you to create a letter or postcard from within the app, then LETTRIX prints and sends it to any US destination. You can send letter, postcard etc with fully customized (i.e you can add your own photos and signature ) ,which will be sent printed and sent to your desired location. User can create from anywhere in the world, and we send it from the USA today or whenever you schedule it to go in the mail!  When LETTRIX can help you... • An email just doesn't do the trick! • You don't have time to prepare a letter or run to the post office/box • You want to send a custom postcard to one or more friends or family members • You want to mail a hard copy of a document or image via our UPLOAD function. Our US team prints, stuffs (letters) in an envelope, buys stamps, applies the stamps to the letter or postcard, and places it in the US mail! You also have the option to schedule your item to be sent at a future date via our scheduler. Create and send letter and beautiful postcards to your friends, family or anyone else you would like to make feel special.Send a letter to your child on their 5th birthday, 4 years from now!  Send your children a birthday note by writing it now while its on your mind, and scheduling it for mailing for his or her birthday in the future. Letters: Choose from our various templates, write your letter, add your recipients, and we do the rest!  You can even send the same letter to multiple recipients! Postcards: Create custom postcards with your photo's, then we print, stamp and mail them from our US location via USPS. And just like letters, you can send your postcards to multiple recipients all at the same time! We remove the hassle of mailing! No more searching for where to buy stamps. No more searching for a mailbox. Do it all from your smartphone or tablet! Key features of Lettrix App: • Postcards are printed on thick, 4x6 photo paper • Letters are printed on superior business quality white, flat paper (not linen) with a matching envelope • Your real signature on every item • Delivered in the US from anywhere in the world! • Dropped in the mail the same or next day • Sign letters and postcards with your finger! • Saved recipient list for sending quickly • Multiple templates to fit the message! • Save drafts • Access your history of items sent

Screenshots

Mail Princess4 screens
LETTRIX4 screens

Verdict

The call

The clearest difference is rating: Mail Princess at 3.3 against LETTRIX's 2.8. Mail Princess also leads on review sentiment (71% vs 50%) and iOS requirement (11.0 vs 14.0). On price, ratings volume, update cadence and ads 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. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

Mail Princess holds the better App Store score, 3.3 against 2.8. Both are backed by a comparable volume of ratings — 7 and 13 respectively. Written reviews point the same way: 71% of Mail Princess's written reviews are positive against 50% of LETTRIX's.

UpkeepUpdate frequency

Mail Princess ships an update every 3 months, LETTRIX every 2 months. Both last shipped on November 2, 2026.

Scorecard3 real differences · 7 level
Mail Princess versus LETTRIX: the parameters behind the verdict, then further details
ParameterMail PrincessLETTRIX
PriceFreeFree
Rating3.3 (7 ratings) — better2.8 (13 ratings)
Positive reviews71.4% of reviews — better50.0% of reviews
Number of ratings713 — better
Update frequencyEvery 3 monthsEvery 2 months — better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS11.0 — better14.0
Further details — not scored
Size18 MB32 MB
Age rating4+4+
DeveloperAgency Enterprise, LLCNeovix, Inc.

Customer experience

Mail Princess

All ratings7 ratings
Positive57.1%
Neutral0.0%
Negative42.9%
Written reviews7 reviews
Positive71.4%
Neutral0.0%
Negative28.6%

LETTRIX

All ratings13 ratings
Positive46.2%
Neutral0.0%
Negative53.8%
Written reviews10 reviews
Positive50.0%
Neutral0.0%
Negative50.0%

In-app purchases

None

Mail Princess

No in-app purchases

None

LETTRIX

No in-app purchases

Questions

Is Mail Princess free?
Mail Princess is free to download, with no in-app purchases.
Is LETTRIX free?
LETTRIX is free to download, with no in-app purchases.
Which has better reviews, Mail Princess or LETTRIX?
Mail Princess is rated higher. Mail Princess averages 3.3 out of 5 from 7 ratings, while LETTRIX averages 2.8 from 13 ratings.
Do Mail Princess or LETTRIX have ads?
Neither Mail Princess nor LETTRIX shows ads.
Which is updated more often, Mail Princess or LETTRIX?
Mail Princess ships an update every 3 months, and LETTRIX every 2 months. Most recently, Mail Princess was updated on November 2, 2026 and LETTRIX on November 2, 2026.

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