DD vs Flare
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
DD
A private wellness companion for veterans managing PTSD and using cannabis. It offers daily symptom tracking, cannabis session logging, and evidence-based coping tools. All data stays on your device, with no accounts or ads.
- Daily PTSD symptom check-ins
- Cannabis session logging
- Personalized insights and charts
- Evidence-based coping tools
- Tolerance break tracker
- Direct access to Veterans Crisis Line
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DD420 is a private wellness companion for veterans managing PTSD who also use cannabis for symptom relief. No judgment. No politics. Just tools. Your data never leaves your device. No accounts. No ads. No one is watching. DAILY CHECK-IN Track your PTSD symptoms using the same four clusters the VA uses — Intrusion, Avoidance, Mood & Thinking, and Alertness — in a guided, one-step-at-a-time flow built to feel less overwhelming. Rate each area honestly, log your mood and sleep, and note what triggered you. Takes less than two minutes, and your progress saves automatically if you get interrupted. Over time, your check-ins build a picture of how you're actually doing — not how you think you're doing. CANNABIS SESSION LOG Log each session with strain, method, THC and CBD content, timing, and — most importantly — why you used it and whether it helped. Select from 12 veteran-specific conditions including PTSD symptoms, chronic pain, sleep and insomnia, nightmares, anxiety, hyperarousal, and more. Each condition has its own curated list of effects to track. You'll start to see which strains, methods, and dosages actually move the needle for your specific symptoms. INSIGHTS Charts built from your own data. See your symptom severity trend over time, which PTSD clusters affect you most, how sleep quality relates to your symptom scores, how cannabis use correlates with next-day symptoms, and which conditions you use most. The more you log, the clearer the patterns become. COPING TOOLS Evidence-based tools organized by what you need right now. Breathing exercises, grounding techniques, progressive muscle relaxation, sleep visualization, and urge surfing — available any time, no subscription required. TOLERANCE BREAK TRACKER Set a break goal, track your progress day by day, and get coping prompts for cravings. Includes plain-language education on what tolerance is and what to expect during a break. 100% FREE Every feature in DD420 is free. Always. No subscriptions, no locked features, no paywalls. If you want to support development, an optional one-time tip ("Buy Me a Bag") is available in Settings — never required. BUILT FOR VETERANS Veterans Crisis Line: 988, press 1 — call or text directly from the app, one tap, any time. Chat: veteranscrisisline.net DD420 is not affiliated with the VA or DoD. It is not a medical app and does not diagnose or treat any condition. All data is stored on your device only.
Flare
Log migraine details like pain level, medications, and triggers to identify patterns. Visualize your migraine history with color-coded entries and monthly charts. All your data is kept private on your device.
- Color-coded pain scale 1-10
- Custom medications and triggers
- Monthly dashboard with charts
- Export and import data as CSV
- Light and dark mode
- 100% private data storage
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Flare is your personal migraine tracker: simple, private, and always with you. Log every migraine day with a pain level from 1–10, your medications, and what triggered it. Your calendar fills with color-coded entries so you can spot patterns at a glance. The dashboard charts your migraine days, average pain, medication use, and top triggers month by month. Features: - Color-coded pain scale 1–10 - Custom medications and triggers - Monthly dashboard with charts - Export and import your data as CSV - Light and dark mode - 100% private — all data stays on your device - No account required
Screenshots
Verdict
The clearest difference is price: DD at Free against Flare's $1.99. DD also leads on rating (5.0 vs 4.0) and ratings volume (14 vs 1). Flare's advantage is in-app purchases (none vs 3) and device support (3 vs 1). On review sentiment, update cadence and ads 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
DD is free to download; Flare costs $1.99 up front. DD sells 3 one-off in-app purchases. Flare asks for nothing beyond the download.
DD holds the better App Store score, 5.0 against 4.0. That said, the two scores are not equally well evidenced: DD has 14 ratings behind it against 1, so its average is the more settled of the two. Written reviews split almost evenly too, at 100% and 100% positive.
DD ships an update every 4 days, Flare weekly. The most recent releases landed on October 28, 2026 and October 11, 2026 respectively.
| Parameter | DD | Flare |
|---|---|---|
| Price | Free — better | $1.99 |
| Rating | 5.0 (14 ratings) — better | 4.0 (1 ratings) |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| Number of ratings | 14 — better | 1 |
| Update frequency | Every 4 days — better | Weekly |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free — better | Paid |
| Devices | iPhone | iPhone, iPad, iPod — better |
| Requires iOS | 17.6 | 15.0 — better |
| Further details — not scored | ||
| Size | 20 MB | 3 MB |
| Age rating | 17+ | 4+ |
| Developer | Shawn Wright | Emma Backer |
Customer experience
DD
Flare
In-app purchases
DD
- Coffee Tip$2.99
- Lunch Tip$4.99
- Hero Tip$9.99
Flare
No in-app purchases









