Comparison

Montana Field Guide vs Deckwise

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

Head to head
About

Montana Field Guide

Explore Montana's biodiversity with this offline-first field guide. Discover species through browsing, powerful search, and detailed profiles featuring photos, maps, and conservation information. Ideal for naturalists, educators, and outdoor enthusiasts.

Highlights
  • Offline-first reference app
  • Browse by clades (mammals, birds, plants, etc.)
  • Powerful search by name and characteristics
  • Detailed species profiles with photos and maps
  • Seasonal discovery and curated collections
  • Compare species side-by-side
Features
Read full description

Montana Field Guide is a beautifully designed, offline-first reference app for exploring Montana's living world. Built by Nature Tools, it brings together species knowledge, field-friendly browsing, powerful search, rich photos, maps, and conservation context in a mobile experience made for naturalists, educators, hunters, anglers, hikers, land managers, and anyone curious about the state’s biodiversity. Browse by major clades like mammals, birds, fish, reptiles, amphibians, fungi, lichens, flowering plants, and invertebrates. If you do not know what you are looking for yet, start from curated collections like Photo-rich, Mapped Species, Habitat Clues, Conservation Notes, and Species of Concern, or use Seasonal Discovery to jump into spring, summer, fall, or winter patterns. Search goes beyond names. You can look up species by common name, scientific name, alternate names, and bundled species notes, then narrow results by clade, family, photos, maps, habitat notes, seasonality, conservation content, and Species of Concern signals. You can even run filter-only searches without typing a species name, which makes the app useful when you know the kind of organism or context you want, but not the exact species. Each species detail page is built to help you learn and compare in the field. Depending on the species, entries can include photos, range maps, observation maps, annual activity charts, elevation charts, habitat notes, ecology, diagnostic characteristics, management context, threats, references, and taxonomy. The app also surfaces related species from the same genus or family and lets you compare two saved species side by side. Montana Field Guide is designed for real use away from a desk. The core dataset is bundled inside the app for dependable local browsing and search, while viewed media can also be cached on the device for faster repeat access. There are no accounts to create, no subscriptions, and no analytics or ad tech in the current release path.

About

Deckwise

Features
Read full description

Deckwise is a focused flashcard app that helps you create cards quickly and review what matters each day. Start studying in seconds with an optional sample deck, or create your own deck for vocabulary, exams, school subjects, professional terms, and more. Add front-and-back cards, tap to reveal answers, and rate each review with Again, Hard, Good, or Easy. Create cards faster: - Save & Add Another for continuous card entry - Bulk Add from tab, vertical-bar, or CSV-formatted text - Preview valid, invalid, empty, and duplicate rows before importing - Import and export UTF-8 CSV files through the Files app - Duplicate a deck with fresh card IDs and review schedules Focused daily study: - See cards due today - Use simple review scheduling - Track review history and study progress with Deckwise Pro - Keep decks, cards, and study data stored locally - Study without creating an account Deckwise Pro adds: - Removal of all banner and interstitial ads - Daily local study reminders - Review history - Advanced study statistics - Additional themes Deckwise Pro is available as monthly and yearly auto-renewable subscriptions. U.S. prices are $2.99 per month and $19.99 per year; localized prices are shown before purchase. Payment is charged to your Apple ID account when you confirm your purchase. Subscriptions renew automatically unless cancelled at least 24 hours before the end of the current billing period. Manage or cancel your subscription in your Apple ID subscription settings. Restore Purchases is available in Settings. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://github.com/app-policies/privacy-policy-deckwise/blob/main/privacy_policy.md

Screenshots

Montana Field Guide4 screens
Deckwise4 screens

Verdict

The call

The clearest difference is in-app purchases: Montana Field Guide at none against Deckwise's 2. Montana Field Guide also leads on ads (none vs shown). Deckwise's advantage is update cadence (every 5 days vs fortnightly) and iOS requirement (13.0 vs 26.0). On price 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. Deckwise sells 2 in-app purchases, starting at $2.99 per month. Montana Field Guide asks for nothing beyond the download.

UpkeepUpdate frequency

Montana Field Guide ships an update fortnightly, Deckwise every 5 days. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.

Scorecard4 real differences · 6 level
Montana Field Guide versus Deckwise: the parameters behind the verdict, then further details
ParameterMontana Field GuideDeckwise
PriceFreeFree
Rating4.5 (19 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings19 — better—
Update frequencyFortnightlyEvery 5 days — better
AdsNo — betterYes
In-app purchasesNo — betterYes
MonetizationFree—
DevicesiPhone, iPadiPhone, iPod
Requires iOS26.013.0 — better
Further details — not scored
Size329 MB42 MB
Age rating4+4+
DeveloperMARTY RADD ICENOGGLEKANDK

In-app purchases

None

Montana Field Guide

No in-app purchases

2 purchases

Deckwise

Subscriptions2
  • Deckwise Pro Monthly$2.991 Month
  • Deckwise Pro Yearly$19.991 Year

Questions

Is Montana Field Guide free?
Montana Field Guide is free to download, with no in-app purchases.
Is Deckwise free?
Deckwise is free to download, with in-app purchases available.
Do Montana Field Guide or Deckwise have ads?
Deckwise shows ads; Montana Field Guide does not.
Which is updated more often, Montana Field Guide or Deckwise?
Montana Field Guide ships an update fortnightly, and Deckwise every 5 days. Most recently, Montana Field Guide was updated on October 24, 2026 and Deckwise on October 25, 2026.

Other comparisons