AR Grimoire vs Ham Engineering
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
AR Grimoire
Visualize D&D spells in augmented reality on your tabletop. Manage spellbooks, create characters, and track spell slots with a user-friendly interface. Includes SRD 5.1 spells and custom spell support.
- Augmented reality spell visualization
- Spell range and shape projection
- Gesture-based spell manipulation
- Full-featured spellbook
- Character creation and spell slot tracking
- Spell filtering by class, school, and keywords
- Custom spell addition
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IN A WORLD WHERE D&D MEETS AUGMENTED REALITY... ——— Augmented Reality ——— AR Grimoire makes it possible to see your D&D spells on the real tabletop. Just go to any area of effect spell like "Acid Splash" or "Burning Hands" and see it in augmented reality. Get started by scanning your mini. The app will instantly visualize the casting range and the shape of the spell. Easily use gestures to move and rotate the spell around your mini. No more counting out squares on the battle map while the rest of your party is impatiently waiting. Search by "AR visualization" to see all the different types of areas of effect: cube, sphere, cone, line, and cylinder. ——— Advanced Spellbook Capabilities ——— AR Grimoire also works as a full-featured spellbook app to help you quickly cast spells and easily manage your spellbooks. Character creation is fast and simple. Just add stats necessary for spellcasting -- no need to add in everything from your character sheet. Enjoy a beautiful interface to track your spell slots, add to your spellbook, and update your prepared spells. Spells in the app have subtitles that remind you of the most important casting information: casting time, range, and damage dice / saving throw type. You only need to read the spell description if you want to dive into more detail. You can use powerful search functionality to easily filter spells down by the following categories: - Character class - Spell school - Ritual spells - Concentration spells - Saving throw types - Damage types The app also includes generated "keywords" that group spells by more abstract qualities. Currently you can choose from 8 different keywords to find the perfect spell, with more coming in the future: - Nature - Weather - Illusion - Willing - Healing - Protection - Teleport - Barrier The app includes all spells available in the System Reference Document (SRD) 5.1 via the Open Gaming License. You can always add in your own custom spells to the app. ——— In-App Purchases and Subscriptions ——— Upgrade to AR Grimoire Pro through the in-app purchases to access: - Unlimited custom characters/spellbooks - Access to future Pro features planned (including iCloud sync, different app themes, bulk spell importer, and more!) - Quick response times for issues - Ability to directly suggest new features and improvements to the app There are three AR Grimoire Pro subscriptions: - 1 month costs $0.99. - 6 months costs $4.49 (or $0.75/mo). - Lifetime costs $19.99. Subscriptions will be charged to your credit card through your iTunes account. Your subscription will automatically renew unless cancelled at least 24 hours before the subscription period ends. You can turn off auto-renew and manage your subscription in Account Settings at any time. Terms of Use & Privacy Policy: https://argrimoire.com/privacy-policy/ ——— Contact us ——— If you have any questions or issues, please contact: hello@argrimoire.com.
Ham Engineering
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Ham Engineering is the engineering bench for amateur radio — antenna and feedline maths, circuit design, propagation and a deep reference library, all completely offline. No account, no ads, no tracking, and not a single network call. ANTENNAS • Half-wave dipole with adjustable k (velocity) factor, quarter-wave and 5/8-wave verticals, ground-plane radials, end-fed half-wave, random wire, full-wave loop and a 3-element Yagi estimator • Matching: L-network, Pi-network, quarter-wave transformer, balun/unun ratios and stub matching • Antenna Lab — a live elevation radiation-pattern plot with directivity, realized gain, takeoff angle, beamwidth, front-to-back, mismatch loss, feedline loss and system gain, each explained • Grid Compass that rotates with your phone, showing beam bearing and distance from your grid to a target grid • Antenna gallery — every common type drawn as scalable vector art, with what it is, what it is for and what to watch out for FEEDLINES & RF • Coax loss by cable type, frequency and run length; velocity-factor electrical length • SWR from forward/reflected power, plus return loss and mismatch loss • Antenna A/B comparison and receiver noise-floor estimation • RF power conversions: dBm, watts, ERP and EIRP • Propagation: free-space path loss, radio horizon and Fresnel-zone clearance • NanoVNA and tinySA quick-start guides, and a coax + connector gallery CIRCUITS • Ohm's law, series/parallel resistance, voltage dividers, RC and RL time constants • Reactance, LC resonance, Q and bandwidth, stored energy • RC and LC filter cutoffs, a constant-k Pi/T filter designer, a bandpass/notch calculator and a Butterworth low-pass designer • Resistor, capacitor and inductor code decoders, an AWG wire table and a 555 timer calculator • A live RLC resonance lab and a 50-part component gallery REFERENCE & EXTRA • Filterable amateur band plan for ITU Regions 1, 2 and 3 • Unit converters including watts, dBm and microvolts • Comparison tables for coax, connectors, antennas and batteries • Tools-and-gear and rig-controls galleries — what every knob and button is called across manufacturers • Maidenhead grid tools and great-circle beam headings • 300+ searchable tips, 40+ formulas, a rich glossary and a constants reference • Curated external links to major retailers, brands and references BUILT FOR THE BENCH • Nearly 200 illustrations drawn as scalable vector art — nothing to download, everything sharp at any size • Works fully offline. The app makes no network calls at all • Export any panel or diagram as a theme-aware image to share or file • An (i) explanation on every panel — this is a tool and a guide, not a quiz • Light and dark themes, adjustable font size, weekly tips and in-app version history • Your callsign, grid and email stay on your device and are never transmitted PERFECT FOR • Licensed operators designing, building and tuning antennas • Anyone putting up a first dipole or vertical and wanting the numbers right • Homebrewers and kit builders working with filters, matching and components • SWLs and newcomers who want the reference material without the exam drill • Club elmers and anyone teaching antenna and RF fundamentals PRIVACY • Your callsign, grid and email are stored only on your device. • No account, no sign-up, no ads, no analytics SDKs, no advertising ID and no tracking of any kind. 73 de A41UX Yousuf AL Balushi — Unixeer, Oman
Screenshots
Verdict
The clearest difference is in-app purchases: Ham Engineering at none against AR Grimoire's 3. AR Grimoire's advantage is update cadence (every 5 days vs every 3 weeks). On price, ads, device support and iOS requirement 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
Both are free to download. AR Grimoire sells 3 in-app purchases, starting at $0.99 per month. Ham Engineering asks for nothing beyond the download.
AR Grimoire ships an update every 5 days, Ham Engineering every 3 weeks. The most recent releases landed on October 3, 2026 and October 4, 2026 respectively.
| Parameter | AR Grimoire | Ham Engineering |
|---|---|---|
| Price | Free | Free |
| Rating | 4.1 (15 ratings) — better | — |
| Positive reviews | 83.3% of reviews | — |
| Number of ratings | 15 — better | — |
| Update frequency | Every 5 days — better | Every 3 weeks |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 12.0 — better | 13.0 |
| Further details — not scored | ||
| Size | 15 MB | 21 MB |
| Age rating | 4+ | 4+ |
| Developer | Vivian Qu | Yousif AL Balushi |
In-app purchases
AR Grimoire
- AR Grimoire Pro Monthly$0.991 Month
- AR Grimoire Pro 6 Months$4.496 Months
- AR Grimoire Pro Lifetime$19.99
Ham Engineering
No in-app purchases
Questions
Is AR Grimoire free?
Is Ham Engineering free?
Do AR Grimoire or Ham Engineering have ads?
Which is updated more often, AR Grimoire or Ham Engineering?
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