Comparison

BioCalendar vs Slangnet

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

Head to head
About

BioCalendar

Features
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BioCalendar counts your three biorhythm cycles from the day you were born and gives you a written reading for every day. The physical cycle runs 23 days, the emotional 28 and the intellectual 33. Each passes through the same eight states, from its high through a critical day to its low and back. Where the three sit today chooses one of 512 written readings. Read yours in the morning, then notice how the day feels against it: a few minutes of reflection, every day. WHAT YOU GET • Today's reading, and the reading for any date, past or future • A calendar with every date's symbols and critical days • A daily notification at the hour you choose • Goals, with the stretches of the month that suit each one • A monthly set of readings written around your goals and your "About you" answers • The key to every symbol, and a Help Center inside the app WITH PLUS • A personalised reading written for you every day • The Companion: ask about your day or your week, in plain language FAMILY PLANS • Up to five people on one subscription, each with their own login • Compare days: see, cycle by cycle, where your rhythms fall in step with each other • Family Plus adds personalised readings and the Companion for everyone in the household PLANS AND THE FREE TRIAL Core and Plus are for one person; Family and Family Plus are for up to five. Every plan starts with seven days free for new subscribers. After the trial the plan renews automatically, monthly or yearly as you chose, and your Apple ID is charged at the start of each period unless auto-renew is turned off at least 24 hours before the period ends. Manage or cancel in your Apple ID subscription settings; you keep access until the end of the period you have paid for. YOUR DATA Your date of birth is the one thing BioCalendar needs, and it never leaves our servers. The personalised and monthly readings and the Companion are written with an AI provider, and only if you allow it; your name, email address and date of birth are never sent to it. You can delete your account, and everything in it, from Settings. WHAT BIOCALENDAR IS Biorhythm theory is not supported by scientific studies, and BioCalendar does not claim otherwise. For educational, informational and entertainment purposes only. Not advice, and not a prediction. NEW IN VERSION 3 BioCalendar 3 is a new app, built from the ground up. Accounts from earlier versions are not carried over: please create a new account when you open it. Terms of Use (EULA): https://biocalendar.net/Termsofservice/ Privacy Policy: https://biocalendar.net/privacy-policy/ Support: https://biocalendar.net/support/

About

Slangnet

Features
Read full description

SlangNet connects traditional English with Gen Alpha slang, making it easy to translate and understand trendy language with clear meanings and context. SlangNet was born from this need for understanding. It’s not just a dictionary—it’s a bridge between generations, making communication smoother, clearer, and a whole lot more fun. Features of SlangNet 1. SlangNet can translate in two directions: - English to Gen Alpha Slang: Transform everyday English phrases into modern, trendy expressions. Whether you're crafting a TikTok caption or trying to impress your Gen Alpha friends, SlangNet gives you the lingo to stay relevant. - Gen Alpha Slang to English: Decode the latest slang into standard English with detailed explanations. Perfect for parents, teachers, or anyone wanting to stay in the know. 2. SlangNet doesn’t just translate—it educates. Each slang term or phrase comes with: A definition, Examples of usage, Phrase 3. Stay up-to-date with the latest slang. SlangNet regularly updates its database to include new terms and phrases as they emerge. Gen Alpha slang changes quickly, and SlangNet ensures you’re always ahead of the curve. 4. You can Search for any word you want to translate from Gen Alpha slang to english or can translate from english to Gen alpha slang. 5. The app allows users to submit new slang terms they encounter, making SlangNet a dynamic, crowd-sourced hub for language evolution. Who Can Benefit From SlangNet? Trying to understand what your kids are texting about? SlangNet translate the mysteries of Gen Alpha’s language, helping parents stay connected and informed. Want to appeal to younger audiences? SlangNet helps you craft messages that resonate with GenZ Alpha by translating your ideas into language they understand and engage with. SlangNet offers a fascinating glimpse into how digital culture influences communication. SlangNet isn’t just about slang; it’s about fostering understanding across generations. In a world where language can often create barriers, SlangNet ensures that everyone stays connected. By bridging traditional English and Gen Alpha slang, the app promotes inclusivity and helps people share their thoughts and feelings more effectively. Whether you're navigating the complexities of intergenerational communication, diving into the cultural trends of Gen Alpha, or just looking for a fun way to explore language, SlangNet is here to make it all effortless and enjoyable. SlangNet: Because communication should never go out of style. Download the app now. Subscription Plans: Monthly : $ 1.99 Yearly: $ 19.99 Payments and Renewal: Payment will be charged to iTunes Account at confirmation of purchase. Subscription automatically renews unless auto-renew is turned off at least 24-hours before the end of the current period. Account will be charged for renewal within 24-hours prior to the end of the current period. You can manage or turn off auto-renew in your Account settings at any time after purchase. Privacy Policy : https://creativity-center.net/privacy/ Terms of Use: https://creativity-center.net/terms/

Screenshots

BioCalendar4 screens
Slangnet4 screens

Verdict

The call

The clearest difference is in-app purchases: BioCalendar at none against Slangnet's 2. Slangnet's advantage is update cadence (fortnightly vs every 3 months) and iOS requirement (13.0 vs 16.4). On price, ads 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. Slangnet sells 2 in-app purchases, starting at $1.99 per month. BioCalendar asks for nothing beyond the download.

UpkeepUpdate frequency

BioCalendar ships an update every 3 months, Slangnet fortnightly. The most recent releases landed on October 21, 2026 and October 5, 2026 respectively.

Scorecard3 real differences · 3 level
BioCalendar versus Slangnet: the parameters behind the verdict, then further details
ParameterBioCalendarSlangnet
PriceFreeFree
Update frequencyEvery 3 monthsFortnightly — better
AdsNoNo
In-app purchasesNo — betterYes
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS16.413.0 — better
Further details — not scored
Size51 MB49 MB
Age rating4+4+
DeveloperHarvey MakishimaCreativity Center, LLC

In-app purchases

None

BioCalendar

No in-app purchases

2 purchases

Slangnet

Subscriptions2
  • Premium User Monthly$1.991 Month
  • Premium User Yearly$19.991 Year

Questions

Is BioCalendar free?
BioCalendar is free to download, with no in-app purchases.
Is Slangnet free?
Slangnet is free to download, with in-app purchases available.
Do BioCalendar or Slangnet have ads?
Neither BioCalendar nor Slangnet shows ads.
Which is updated more often, BioCalendar or Slangnet?
BioCalendar ships an update every 3 months, and Slangnet fortnightly. Most recently, BioCalendar was updated on October 21, 2026 and Slangnet on October 5, 2026.

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