Comparison

IntelliCheck vs LETTRIX

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

Head to head
About

IntelliCheck

Automate food temperature logging and HACCP inspections with this system. It eliminates manual checklists, integrates corrective actions, and provides real-time data for compliance and audits.

Highlights
  • Automated food temperature data logging
  • HACCP inspection system
  • Integrated corrective actions
  • Wireless Wi-Fi operation
  • Real-time data logging
  • HACCP compliant reports and graphs
Features
Read full description

IntelliCheck™ is a complete HACCP inspection system designed to automate food temperature data logging and eliminate cumbersome form-based solutions. No more filling out checklists by hand and stuffing them into a filing cabinet. With IntelliCheck™, you simply choose an option on your iOS Device and the system does the rest. IntelliCheck™ System Features: • Works with IntelliProbe™ (Handheld integrated probe with 30-pin Apple connector) • Wireless solution operates via Wi-Fi • HACCP menu plan and control points pre-programmed and automated, including walk-in coolers/freezers, reach-in coolers, warmers, ovens, cooking temperatures, holding temperatures, reheating temperatures, and any other user-specified temperatures • Integrated corrective action with pull-down menu allows operators to fix problems as soon as they are detected, making sure to fully comply with HACCP safe ranges • Automated checklists help reduce labor costs by minimizing time needed to complete food safety inspections • Helps maintain accurate, consistent, and complete records to comply with standard operating procedures (SOP) • All data logged in real time • View and print HACCP compliant temperature reports and graphs for food safety audits

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

IntelliCheck4 screens
LETTRIX4 screens

Verdict

The call

The clearest difference is rating: IntelliCheck at 5.0 against LETTRIX's 2.8. IntelliCheck also leads on iOS requirement (7.0 vs 14.0). LETTRIX's advantage is update cadence (every 2 months vs every 6 months) and ratings volume (13 vs 1). On price, ads, in-app purchases and monetization model 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

IntelliCheck holds the better App Store score, 5.0 against 2.8. That said, the two scores are not equally well evidenced: LETTRIX has 13 ratings behind it against 1, so its average is the more settled of the two.

UpkeepUpdate frequency

IntelliCheck ships an update every 6 months, LETTRIX every 2 months. The most recent releases landed on November 1, 2026 and November 2, 2026 respectively.

Scorecard4 real differences · 6 level
IntelliCheck versus LETTRIX: the parameters behind the verdict, then further details
ParameterIntelliCheckLETTRIX
PriceFreeFree
Rating5.0 (1 ratings) — better2.8 (13 ratings)
Positive reviews—50.0% of reviews
Number of ratings113 — better
Update frequencyEvery 6 monthsEvery 2 months — better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS7.0 — better14.0
Further details — not scored
Size135 MB32 MB
Age rating4+4+
DeveloperE-Control Systems, Inc.Neovix, Inc.

Customer experience

IntelliCheck

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

LETTRIX

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

In-app purchases

None

IntelliCheck

No in-app purchases

None

LETTRIX

No in-app purchases

Questions

Is IntelliCheck free?
IntelliCheck 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, IntelliCheck or LETTRIX?
IntelliCheck is rated higher. IntelliCheck averages 5.0 out of 5 from 1 ratings, while LETTRIX averages 2.8 from 13 ratings.
Do IntelliCheck or LETTRIX have ads?
Neither IntelliCheck nor LETTRIX shows ads.
Which is updated more often, IntelliCheck or LETTRIX?
IntelliCheck ships an update every 6 months, and LETTRIX every 2 months. Most recently, IntelliCheck was updated on November 1, 2026 and LETTRIX on November 2, 2026.

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