Comparison

National Parks Encyclopedia vs DecipherInk

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

Head to head
About

National Parks Encyclopedia

Discover U.S. National Parks through thousands of articles and high-definition photos. This comprehensive guide offers engaging content suitable for all ages, with offline access for on-the-go learning. Earn badges as you explore.

Highlights
  • Thousands of articles and HD photos
  • Comprehensive U.S. National Parks information
  • Simple organization and user interface
  • Offline access
  • Badge collection system
  • Suitable for all ages
Features
Read full description

Explore national parks and their natural and historical context. Read 265 articles, search for a topic, and save discoveries to revisit. START WITH FIVE FREE ARTICLES New readers can choose any five different articles. Your chosen articles stay unlocked, and revisiting them never uses another choice. Existing readers keep previously granted access. MAKE DISCOVERIES YOUR OWN • Search article titles and full text • Follow links between related topics • Save articles and return to your reading position • Continue recent reading and track your progress • Explore connections through the timeline and graph • Find article sources and image credits inside the app CHOOSE YOUR ACCESS Own the full encyclopedia with a one-time purchase for complete offline reading. Or choose monthly or annual Premium for the full encyclopedia plus AI chat grounded in this subject's articles. Eligible new Premium subscribers receive a three-day introductory trial. Subscriptions renew automatically unless canceled through your App Store account. Current local prices and terms appear before purchase. Restore Purchases recovers eligible previous purchases. Earlier full-version ownership includes encyclopedia and offline access; Premium AI requires a subscription. Internet access is required for AI chat and purchases. AI answers may contain errors; consult the linked sources. Article text is derived from Wikipedia. Images come from appropriately licensed Wikimedia Commons and other open sources. Source links, licenses and credits are available in the app. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ An encyclopedia for learning, not live trail conditions or emergency navigation.

About

DecipherInk

Learn to read historical documents with this interactive app. It focuses on paleography, grammar, and vocabulary for genealogical research. Practice exercises enhance reading speed and retention.

Highlights
  • Paleography and script learning
  • Genealogical document vocabulary
  • Basic grammar for historical texts
  • Reading speed practice
  • Document deciphering exercises
  • Reference materials
Features
Read full description

DecipherInk is an interactive genealogy language learning app designed to efficiently help users learn the elements necessary to decipher genealogical documents in various languages. These elements include scripts/paleography, basic grammar, and vocabulary. DecipherInk also includes practice aimed at increasing retention and improving document reading speed, as well as easy-to-use reference materials. Try our free American cursive handwriting course to learn to read and write cursive! Terms of Use (EULA) https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy https://www.decipherink.net/privacy-policy Terms and Conditions https://www.decipherink.net/terms-and-conditions

Screenshots

National Parks Encyclopedia4 screens
DecipherInk4 screens

Verdict

The call

The clearest difference is rating: National Parks Encyclopedia at 4.9 against DecipherInk's 4.4. National Parks Encyclopedia also leads on ads (none vs shown) and update cadence (weekly vs every 5 weeks). On price, ratings volume, 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

Both are free to download. National Parks Encyclopedia sells 3 in-app purchases, starting at $2.99 per month and DecipherInk sells 5 in-app purchases, starting at $0.99 per 7 days. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

National Parks Encyclopedia holds the better App Store score, 4.9 against 4.4. Both are backed by a comparable volume of ratings — 13 and 5 respectively.

UpkeepUpdate frequency

National Parks Encyclopedia ships an update weekly, DecipherInk every 5 weeks. Both last shipped on October 24, 2026.

Scorecard4 real differences · 6 level
National Parks Encyclopedia versus DecipherInk: the parameters behind the verdict, then further details
ParameterNational Parks EncyclopediaDecipherInk
PriceFreeFree
Rating4.9 (13 ratings) — better4.4 (5 ratings)
Positive reviews—100.0% of reviews
Number of ratings13 — better5
Update frequencyWeekly — betterEvery 5 weeks
AdsNo — betterYes
In-app purchasesYesYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.0 — better15.1
Further details — not scored
Size198 MB40 MB
Age rating12+4+
DeveloperGood Spider, LLCGlassfish Education, LLC

Customer experience

National Parks Encyclopedia

All ratings13 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

DecipherInk

All ratings4 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews2 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

3 purchases

National Parks Encyclopedia

Subscriptions2
  • Monthly Premium3 Days trial$2.991 Month
  • Annual Premium3 Days trial$19.991 Year
One-time1
  • Full Version$9.99
5 purchases

DecipherInk

Subscriptions5
  • German - 1 Week$0.997 Days
  • German - 1 Month$25.001 Month
  • German - 3 Months$254.993 Months
Show 2 more
  • German - 1 Year$274.991 Year
  • German - 6 Months$449.996 Months

Questions

Is National Parks Encyclopedia free?
National Parks Encyclopedia is free to download, with in-app purchases available.
Is DecipherInk free?
DecipherInk is free to download, with in-app purchases available.
Which has better reviews, National Parks Encyclopedia or DecipherInk?
National Parks Encyclopedia is rated higher. National Parks Encyclopedia averages 4.9 out of 5 from 13 ratings, while DecipherInk averages 4.4 from 5 ratings.
Do National Parks Encyclopedia or DecipherInk have ads?
DecipherInk shows ads; National Parks Encyclopedia does not.
Which is updated more often, National Parks Encyclopedia or DecipherInk?
National Parks Encyclopedia ships an update weekly, and DecipherInk every 5 weeks. Most recently, National Parks Encyclopedia was updated on October 24, 2026 and DecipherInk on October 24, 2026.

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