Comparison

SAS Survival Guide vs Discount Diary

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

Head to head
About

SAS Survival Guide

This app offers essential wilderness survival information, including fire building, water sourcing, and navigation techniques. It features photo galleries, instructional videos, and a quiz to test your knowledge. Prepare for outdoor adventures with this entry-level survival guide.

Highlights
  • Basic survival information
  • Fire building
  • Finding water
  • Navigation by stars
  • Survival kit checklist
  • Instructional videos
Features
Read full description

This is the FREE version of the Best seller iTunes app, the SAS Survival Guide, available now in the App Store and as an inApp Purchase. Based on the million-copy bestselling book, this fantastic free app provides you with a bare bones guide to wilderness survival. Jam-packed with basic survival tools, you'll be equipped for any expedition to the outdoors with this entry-level guide in your arsenal. ▶▶ ACCOLADES ◀◀ ◆◆◆ SAS Survival Guide wins "Official Honoree" Award at the 15th Annual Webbys ◆◆◆ ◆◆◆ Selected for "iTunes REWIND 2010" ◆◆◆ ◆◆◆ Listed under "Apple Featured Applications", "What's Hot" & "New & Noteworthy" Worldwide.◆◆◆ ◆◆◆ Has achieved the #1 LIFESTYLE APP in most geographic locations.◆◆◆ ▶▶ ABOUT THE SAS SURVIVAL GUIDE ◀◀ For over twenty years, the SAS Survival Guide has been the definitive guide to surviving any situation, anywhere in the world. Now, for the first time ever, the bestselling book has been reinvented for the iPhone. Written by former SAS soldier and instructor, John "Lofty" Wiseman, this application brings you the elite training techniques of Britain’s toughest fighting force in the most accessible version ever. Now you can take the world-class survival skills of the SAS with you anywhere in the world – from the peaks of Kilimanjaro to the deserts of Kandahar…or to your closest national park. The Lite App Contains: •Basic survival information including: building fires, finding water, navigating by the stars, survival kit, signals and codes •Photo galleries of cloud spotting, night sky navigation, and more •Video of Lofty Wiseman demonstrating knife skills •100+ question quiz to test if you've got what it takes to survive •Survival checklist to help you prepare for trips •Search the app by keyword for quick reference ▶▶▶ WHY NOT GET THE FULL APP ◀◀◀ The Full app contains: •Full text, in 9 chapters, of the bestselling book optimised for the iPhone •16 videos providing invaluable survival tips from Lofty himself •Photo galleries of edible, medicinal and poisonous plants •Morse Code signalling device •100 + question quiz to test if you've got what it takes to survive •Survival Checklist •Sun Compass •Search tool to scan entire book by subject •Extreme Climate Survival: sections on surviving Polar, Desert, Tropical, and Sea •Comprehensive First Aid section ------------------------------------ Also included for purchase is the ◆ SAS Urban Survival Guide ◆ Learn How to Protect Yourself Against Terrorism, Natural Disasters, Fires, Home Invasions, and Everyday Health and Safety Hazards

About

Discount Diary

Read full description

Discount Diary — Your Personal Sale Almanac Ever wondered why you always seem to miss the best sales? Or bought something full price, only to see it go on sale a week later? Discount Diary changes that. Discount Diary is a beautifully designed personal journal for logging the sales and discounts you observe every day — at grocery stores, clothing retailers, electronics shops, and everywhere in between. Over time, your diary becomes a powerful almanac that reveals the hidden rhythm of every store's sale cycle. How It Works Every time you spot a sale, log it. Just three taps — pick the category, choose the store, set the discount. That's it. No accounts, no cloud sync required, no complexity. As your diary grows, Discount Diary's built-in cycle engine analyses your observations and starts surfacing intelligent insights. When was the last time this item went on sale? How often does it typically cycle? Is now a good time to buy, or should you wait a few more weeks? Key Features Diary-style logging — A warm, paper-inspired journal interface that makes logging sightings feel effortless. Ruled pages, date headers, and a clean entry card for every observation. Sale Cycle Insights — The Insights tab analyses your logged data and calculates readiness scores, average discount depths, and cycle timing for each category-store pair. Know when "Buy Now" is genuinely the right call. Buy Signals — Each insight gets a smart signal: Buy Now, Coming Soon, Watch, or Wait. Stop guessing and start shopping strategically. Archive and Heatmaps — The Archive screen gives you a historical view of every category's discount history, plus monthly heat maps (Pro) that show which months historically deliver the deepest cuts. Categories and Stores — Built-in categories cover everyday staples: Clothing, Electronics, Groceries, Home, Beauty, and more. Built-in stores cover major retailers. Add your own custom categories and stores anytime. Fully Customisable — Edit or hide any built-in category or store. Your diary reflects your shopping life, not a generic template. Beautiful Themes — Four hand-crafted colour themes for Pro users: Parchment (the warm default), Midnight (dark mode), Forest (deep green), and Dusk (soft purple). Switch anytime from Settings. Backup and Restore — Export your entire diary as a JSON file to iCloud Documents and restore it at any time. Your data is always yours. Almanac Pro Unlock the full power of Discount Diary with a single one-time purchase — no subscriptions, ever. Pro features include unlimited diary entries (free tier is capped at 50), full access to the cycle insights engine, monthly heat maps, seasonal trend charts, and all three premium colour themes. Private by Design Discount Diary stores everything locally on your device. There are no accounts to create, no personal data collected, and no third-party analytics. Your diary belongs to you. Perfect For — Savvy grocery shoppers who track weekly specials — Fashion lovers timing seasonal clearance sales — Tech buyers waiting for the right moment on a big purchase — Anyone who wants to feel in control of their spending

Screenshots

SAS Survival Guide4 screens
Discount Diary4 screens

Verdict

The call

The clearest difference is iOS requirement: Discount Diary at 12.0 against SAS Survival Guide's 15.6. On price, 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

Both are free to download. SAS Survival Guide sells 2 one-off in-app purchases and Discount Diary sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Scorecard1 real difference · 9 level
SAS Survival Guide versus Discount Diary: the parameters behind the verdict, then further details
ParameterSAS Survival GuideDiscount Diary
PriceFreeFree
Rating3.6 (177 ratings) — better—
Positive reviews78.3% of reviews—
Number of ratings177 — better—
Update frequencyEvery 17 months—
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.612.0 — better
Further details — not scored
Size110 MB26 MB
Age rating4+4+
DeveloperTrellisys.netAndy TUNG

Bugs and requests

SAS Survival Guide

Reported bugs

4 issues
  • Inability to access full content beyond first few paragraphs
  • Scrolling not working in certain sections
  • Videos not playing or getting stuck
  • Inconsistent app behavior across devices

Requested features

4 requests
  • More detailed survival content
  • Video tutorials and demonstrations
  • Offline access to full content
  • Ability to save progress and notes

Discount Diary

Not enough reviews yet to summarise bugs or requests.

In-app purchases

2 purchases

SAS Survival Guide

One-time2
  • Urban SAS$3.99
  • SAS Survival Guide$5.99
1 purchases

Discount Diary

One-time1
  • Discount Diary Pro Unlock$9.99

Questions

Is SAS Survival Guide free?
SAS Survival Guide is free to download, with in-app purchases available.
Is Discount Diary free?
Discount Diary is free to download, with in-app purchases available.
Do SAS Survival Guide or Discount Diary have ads?
Neither SAS Survival Guide nor Discount Diary shows ads.

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