Comparison

SPE GTTS vs Pagelock

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

Head to head
About

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.

Highlights
  • Latest GTTS Newsletters
  • Curated technical articles
  • Expert directory
  • AI Assistant for geothermal queries
  • Event and webinar tracking
Features
Read full description

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.

About

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.

Highlights
  • 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
Features
Read full description

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

SPE GTTS4 screens
Pagelock4 screens

Verdict

The call

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

CostPrice · In-app purchases · Ads · Monetization

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.

ReceptionRating · Positive reviews · Number of ratings

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.

UpkeepUpdate frequency

SPE GTTS ships an update daily, Pagelock every 4 weeks. The most recent releases landed on October 23, 2026 and October 24, 2026 respectively.

Scorecard6 real differences · 4 level
SPE GTTS versus Pagelock: the parameters behind the verdict, then further details
ParameterSPE GTTSPagelock
PriceFreeFree
Rating5.0 (1 ratings) — better3.9 (7 ratings)
Positive reviews—0.0% of reviews
Number of ratings17 — better
Update frequencyDaily — betterEvery 4 weeks
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterSubscription
DevicesiPhone, iPod — betteriPhone
Requires iOS15.0 — better17.0
Further details — not scored
Size77 MB35 MB
Age rating4+4+
DeveloperAmr RamadanOmar Darwish

Customer experience

SPE GTTS

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

Pagelock

Written reviews2 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

In-app purchases

None

SPE GTTS

No in-app purchases

3 purchases

Pagelock

Subscriptions3
  • PageLock Pro Weekly$9.997 Days
  • PageLock Pro Annual$9.991 Year
  • PageLock Pro Yearly7 Days trial$39.991 Year

Questions

Is SPE GTTS free?
SPE GTTS is free to download, with no in-app purchases.
Is Pagelock free?
Pagelock is free to download, with in-app purchases available.
Which has better reviews, SPE GTTS or Pagelock?
SPE GTTS is rated higher. SPE GTTS averages 5.0 out of 5 from 1 ratings, while Pagelock averages 3.9 from 7 ratings.
Do SPE GTTS or Pagelock have ads?
Neither SPE GTTS nor Pagelock shows ads.
Which is updated more often, SPE GTTS or Pagelock?
SPE GTTS ships an update daily, and Pagelock every 4 weeks. Most recently, SPE GTTS was updated on October 23, 2026 and Pagelock on October 24, 2026.

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