Comparison

Lambert vs Secure Message and Text

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

Head to head
About

Lambert

This application transforms your iPhone into a specialized geological compass. It accurately measures the dip direction and angle of geological strata, displaying real-time orientation data. Measurements can be enhanced with text and plotted on a map for easy transfer to your computer.

Highlights
  • Geological compass functionality
  • Measure dip direction and angle
  • Real-time stereographic projection
  • Wulff and Schmidt Net projection diagrams
  • Add text to measurements
  • Plot measurement localities on a map
  • Transfer data to computer
Features
Read full description

This app turns your iPhone into a geological compass, a tool for each geologist. It can be used to measure the direction of dip and the angle of dip of geological strata. The app shows the current device orientation in a realtime stereographic projection. The data can be previewed in projection diagrams (Wulff and Schmidt Net) and transferred to your computer. You can add text to the measurements and plot the measurement localities on a map.

About

Secure Message and Text

Read full description

Tired of your friends stalking on your text messages? Need to hide messages from parents, family, even certain friends? This app is for you! With 'Secure Message and Text' you can encrypt any of your texts with a password! Then any nosy viewers will only be able to re-read your original message on their device by entering the same password! Ex: You will enter your message, "Hello World!" Then encrypt it with the password, "alks" (or whatever you so choose) ... Now you will send them the encrypted message, it will probably look something like this, "2oSe9sy90rmZAaTqTs6WEA==". Now when your recipient receives the encrypted message they will simply copy paste it into the decryption tab and enter the password "alks" (again, this password will vary depending on what you decide to set it as). If properly entered, the original message will be displayed, "Hello World!" Main features: - Encrypt your text message with your password. Encrypted text will be copied to clipboard automatically. - Send your encrypted text via SMS, Email, Facebook, Twitter... - Decrypt your encrypted text to view original text. **Optimized for iPhone 6(s), iPhone 6(s) Plus, iPhone 7, iPhone 7 Plus, iPhone 8, iPhone 8 Plus, and iPhone X to iPhone 14 Pro Max and all iPad devices

Screenshots

Lambert4 screens
Secure Message and Text4 screens

Verdict

The call

The clearest difference is price: Lambert at Free against Secure Message and Text's $2.99. Lambert also leads on update cadence (every 5 months vs every 38 months). Secure Message and Text's advantage is iOS requirement (12.0 vs 16.6). On ads, in-app purchases 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

Lambert is free to download; Secure Message and Text costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Lambert ships an update every 5 months, Secure Message and Text every 38 months. The most recent releases landed on June 1, 2026 and September 8, 2026 respectively.

Scorecard3 real differences · 7 level
Lambert versus Secure Message and Text: the parameters behind the verdict, then further details
ParameterLambertSecure Message and Text
PriceFree — better$2.99
Rating5.0 (4 ratings) — better—
Positive reviews75.0% of reviews—
Number of ratings4 — better—
Update frequencyEvery 5 months — betterEvery 38 months
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS16.612.0 — better
Further details — not scored
Size2 MB4 MB
Age rating4+4+
DeveloperPeter AppelDai Phan

In-app purchases

None

Lambert

No in-app purchases

None

Secure Message and Text

No in-app purchases

Questions

Is Lambert free?
Lambert is free to download, with no in-app purchases.
Is Secure Message and Text free?
Secure Message and Text costs $2.99, with no in-app purchases.
Do Lambert or Secure Message and Text have ads?
Neither Lambert nor Secure Message and Text shows ads.
Which is updated more often, Lambert or Secure Message and Text?
Lambert ships an update every 5 months, and Secure Message and Text every 38 months. Most recently, Lambert was updated on June 1, 2026 and Secure Message and Text on September 8, 2026.

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