SPE GTTS vs Pagelock
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
SPE GTTS
This app serves as a hub for professionals in the geothermal energy sector. It provides access to news, technical articles, an expert directory, and an AI assistant for real-time queries. Users can also track upcoming events and webinars.
- Latest GTTS Newsletters
- Curated technical articles
- Expert directory
- AI Assistant for geothermal queries
- Event and webinar tracking
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SPE GTTS - The Subsurface Energy Transition Hub The official mobile application for the SPE Geothermal Technical Section (GTTS). SPE GTTS is the premier global forum for professionals, engineers, and geoscientists leading the transition from traditional oil and gas technical synergies to the expanding world of geothermal energy. Key Features: Stay Informed: Read the latest GTTS Newsletters and curated technical articles directly on your mobile device. Technical Insights: Explore a library of curated reading materials specifically chosen for geothermal and energy transition experts. Network with Experts: Connect with the GTTS Board and leadership team. Access our expert directory to find the right subsurface collaborators. AI Assistant: Meet our built-in GTTS AI Assistant. Ask questions about geothermal drilling, reservoir management, EGS, and career transitions in real-time. Events & Webinars: Never miss a session. Track upcoming technical webinars, conferences, and community meetups. Who is it for? Whether you are a drilling engineer transitioning from petroleum to geothermal, a geoscientist exploring subsurface heat, or a policymaker shaping renewable energy, SPE GTTS provides the data and network you need. Join thousands of professionals working together to turn subsurface heat into practical, sustainable solutions.
Pagelock
This app helps you build a reading habit by replacing mindless scrolling with engaging with a physical book. It requires you to read and answer a question about a scanned book page before you can access distracting apps, promoting focus and reducing screen time.
- Block distracting apps until reading
- Unlock phone through reading
- Scan printed book pages
- Complete reading checks
- Timed reading sessions
- Set daily reading goals
- Track reading progress
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Pagelock helps you read more and scroll less. A simple way to stop doomscrolling and build a real reading habit. When a distracting app calls for your attention, Pagelock puts something better in the way. A real book. Open a page. Read it. Scan it. Answer a quick question. Then decide if you still want to continue. That small pause changes the moment. Instead of falling straight into mindless scrolling, you stop, read, and come back with more focus and control. Pagelock is for people who want: • less doomscrolling and more real reading • a distraction blocker that actually helps you grow • a calmer, more mindful relationship with their phone • to reduce screen time without deleting apps What you can do with Pagelock: • block distracting apps until you read a real page • unlock your phone through reading, not willpower • scan a printed book page with your camera • complete a quick reading check to verify you read • run timed reading sessions and build a daily habit • set daily reading goals and track streaks • choose how unlocks work • track your reading progress and history over time Pagelock is not another screen time app that shames you into putting your phone down. It is a digital detox tool that replaces the scroll with something real. A book. Read to unlock. Build a reading habit. Take back your focus. *All features described above and shown in screenshots require a subscription* Terms of Use: https://pagelock.app/terms Privacy Policy: https://pagelock.app/privacy
Screenshots
Verdict
The clearest difference is rating: SPE GTTS at 5.0 against Pagelock's 3.9. SPE GTTS also leads on in-app purchases (none vs 3) and update cadence (daily vs every 4 weeks). Pagelock's advantage is ratings volume (7 vs 1). On price, ads 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
Both are free to download. Pagelock sells 3 in-app purchases, starting at $9.99 per 7 days. SPE GTTS asks for nothing beyond the download.
SPE GTTS holds the better App Store score, 5.0 against 3.9. That said, the two scores are not equally well evidenced: Pagelock has 7 ratings behind it against 1, so its average is the more settled of the two.
SPE GTTS ships an update daily, Pagelock every 4 weeks. The most recent releases landed on October 23, 2026 and October 24, 2026 respectively.
| Parameter | SPE GTTS | Pagelock |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | 3.9 (7 ratings) |
| Positive reviews | — | 0.0% of reviews |
| Number of ratings | 1 | 7 — better |
| Update frequency | Daily — better | Every 4 weeks |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Subscription |
| Devices | iPhone, iPod — better | iPhone |
| Requires iOS | 15.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 77 MB | 35 MB |
| Age rating | 4+ | 4+ |
| Developer | Amr Ramadan | Omar Darwish |
Customer experience
SPE GTTS
Pagelock
In-app purchases
SPE GTTS
No in-app purchases
Pagelock
- PageLock Pro Weekly$9.997 Days
- PageLock Pro Annual$9.991 Year
- PageLock Pro Yearly7 Days trial$39.991 Year









