Comparison

Invi eCards vs RAID Calc2

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

Head to head
About

Invi eCards

Easily create and share personalized digital invitations and greeting cards for any occasion. Customize designs with your own text and share instantly via a unique link, eliminating the need for paper.

Highlights
  • Customizable templates
  • Personalized text and details
  • Instant link sharing
  • Digital viewing on any device
  • Eco-friendly alternative to paper cards
Features
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Tired of generic greeting cards? Invi makes creating beautiful and shareable eCards a breeze! Here's what Invi offers: Effortless Design: Choose from a variety of professionally designed templates for birthdays, wedding invitations, and more. Personalized Touch: Add your own details like names, dates, and messages to customize your eCard. Instant Sharing: Generate a unique eCard link that you can easily share via text message, email, or social media. No Hassle Printing: Ditch the paper! Invi allows recipients to view your eCard on any device. Eco-Friendly: Save the environment by creating digital greetings. Invi is perfect for anyone who wants to: Send personalized invitations for any occasion. Create beautiful greetings for birthdays, holidays, and more. Impress your friends and family with stunning eCards. Save time and money compared to traditional paper cards. Download Invi today and start creating amazing eCards!

About

RAID Calc2

Features
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RAID Calc2 is retiring. It leaves the App Store on December 31, 2026. It keeps working on your device after that, but won’t get updates. Its successor is RAID Calculator, from the same developer. It’s the same calculator, plus NAS planning for Synology SHR, Unraid, ZFS, SnapRAID and Btrfs, RAID 50 and 60, and RAID-Z. Search the App Store for β€œRAID Calculator”, or tap the banner in the app. UNTIL THEN, RAID CALC2 STILL DOES THE JOB β€’ RAID 0, 1, 5, 6, 10 and JBOD β€’ Usable and raw capacity, and how efficient the layout is β€’ What the space will show as in TiB, the binary units most systems report β€’ A drive strip showing which drives hold data, parity or mirrors β€’ How many drive failures the array survives β€’ Speed and availability ratings, with a plain-language guide to every level β€’ A caution before a risky rebuild on large drives, with a one-tap switch to RAID 6 β€’ One-tap fixes when the drive count doesn’t suit the level ON EVERY SCREEN β€’ On iPad, and on iPhone Duo opened in landscape, results sit beside inputs β€’ Rotates to landscape on iPhone β€’ Built for iOS 26 with native controls and Liquid Glass β€’ Dark mode, Dynamic Type at every size, and full VoiceOver support β€’ In English, Spanish, French, Italian, Japanese, German, Traditional and Simplified Chinese, Korean and Brazilian Portuguese PRIVATE No accounts, no tracking, no ads. Everything stays on your device. Not affiliated with or endorsed by Synology Inc. Synology and SHR are trademarks of Synology Inc. Not affiliated with or endorsed by Lime Technology, Inc. Unraid is a trademark of Lime Technology, Inc. ZFS is a trademark of Oracle and/or its affiliates. Not affiliated with or endorsed by Oracle.

Screenshots

Invi eCards4 screens
RAID Calc23 screens

Verdict

The call

The clearest difference is ads: RAID Calc2 at none against Invi eCards's shown. Invi eCards's advantage is update cadence (every 6 days vs every 5 months) and iOS requirement (16.6 vs 26.0). On price, in-app purchases and device support there is nothing between them.

Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS

CostPrice Β· In-app purchases Β· Ads Β· Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Invi eCards ships an update every 6 days, RAID Calc2 every 5 months. The most recent releases landed on October 14, 2026 and October 16, 2026 respectively.

Scorecard3 real differences Β· 5 level
Invi eCards versus RAID Calc2: the parameters behind the verdict, then further details
ParameterInvi eCardsRAID Calc2
PriceFreeFree
Positive reviews100.0% of reviewsβ€”
Update frequencyEvery 6 days β€” betterEvery 5 months
AdsYesNo β€” better
In-app purchasesNoNo
MonetizationFree with in-app purchasesβ€”
DevicesiPhone, iPadiPhone, iPad
Requires iOS16.6 β€” better26.0
Further details β€” not scored
Size75 MB7 MB
Age rating4+12+
DeveloperMukul M LTodd Greco

In-app purchases

None

Invi eCards

No in-app purchases

None

RAID Calc2

No in-app purchases

Questions

Is Invi eCards free?
Invi eCards is free to download, with no in-app purchases.
Is RAID Calc2 free?
RAID Calc2 is free to download, with no in-app purchases.
Do Invi eCards or RAID Calc2 have ads?
Invi eCards shows ads; RAID Calc2 does not.
Which is updated more often, Invi eCards or RAID Calc2?
Invi eCards ships an update every 6 days, and RAID Calc2 every 5 months. Most recently, Invi eCards was updated on October 14, 2026 and RAID Calc2 on October 16, 2026.

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