Comparison

SolarWriter vs Gua

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

Head to head
About

SolarWriter

Transform your e-reader into a portable typewriter for outdoor writing. This app connects your keyboard to your e-reader's screen, allowing you to type comfortably on e-ink displays in bright sunlight. Save and share your work easily.

Highlights
  • E-reader integration
  • External keyboard support
  • Outdoor writing on e-ink screens
  • Text mirroring to e-reader
  • File saving and sharing
  • Detailed setup instructions
Features
Read full description

Traditional screens are fantastic everywhere but outside, especially on a sunny day. E-ink screens work well, but e-readers like the Kindle are difficult to type on and don't support external keyboards. SolarWriter gives you the best of both worlds. SolarWriter runs on your iOS device and acts as a hub between your keyboard and your e-reader. You type on the keyboard, and the text appears on both on the iOS device and on the e-reader's screen (via its web browser). Take advantage of your Kindle's (or other e-reader's) e-ink screen to put your thoughts on paper even outside, with no need to transcribe later. Write at parks, on beaches, in backyards... anywhere you wanted to but couldn't. Save files on your device, or share through email, SMS, and more. Detailed instructions for setup are included inside the app.

About

Gua

Features
Read full description

Gua helps you use your phone on purpose. Most screen-time tools are easy to ignore — one tap and the block is gone. Gua is built on a simple idea: breaking a commitment to yourself should take more than a tap. So you set up "lines of defense," and getting past a block means going through them first. BLOCK WHAT PULLS YOU IN • Schedule blocks for the hours that matter — mornings, work, wind-down. • Set daily time limits on specific apps and websites. • Block by app, by website, or by whole category. PUT REAL FRICTION BETWEEN YOU AND THE SCROLL Choose one or more lines of defense. To take a break from a block, you pass them first: • Accountability buddy — a friend approves your break. • Create something first — write, record, or sketch before you consume. BUILT TO KEEP YOU HONEST • Weakening a block requires passing your defenses — no quiet backsliding. • Take a timed break when you genuinely need one, then it re-blocks automatically. • See your streaks and progress over time. Gua runs on your device using Apple's Screen Time technology. Your block list never leaves your phone in a readable form. Start with one block and one line of defense. Small steps, real change. ``` ### What's New (for v1) > The first version of Gua. Block apps and websites, set limits and schedules, and > put a real line of defense between you and the scroll. We're a tiny team and we > read every piece of feedback — tell us what you think.

Screenshots

SolarWriter3 screens
Gua4 screens

Verdict

The call

The clearest difference is in-app purchases: Gua at none against SolarWriter's 1. Gua also leads on update cadence (every 10 days vs every 5 months). SolarWriter's advantage is iOS requirement (15.6 vs 17.0). 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. SolarWriter sells 1 one-off in-app purchase. Gua asks for nothing beyond the download.

UpkeepUpdate frequency

SolarWriter ships an update every 5 months, Gua every 10 days. The most recent releases landed on November 1, 2026 and October 31, 2026 respectively.

Scorecard3 real differences · 7 level
SolarWriter versus Gua: the parameters behind the verdict, then further details
ParameterSolarWriterGua
PriceFreeFree
Rating3.8 (16 ratings) — better—
Positive reviews60.0% of reviews—
Number of ratings16 — better—
Update frequencyEvery 5 monthsEvery 10 days — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.6 — better17.0
Further details — not scored
Size92 MB20 MB
Age rating4+4+
DeveloperCool S, LLCJacob Goldsmith

In-app purchases

1 purchases

SolarWriter

One-time1
  • SolarWriter Pro$9.99
None

Gua

No in-app purchases

Questions

Is SolarWriter free?
SolarWriter is free to download, with in-app purchases available.
Is Gua free?
Gua is free to download, with no in-app purchases.
Do SolarWriter or Gua have ads?
Neither SolarWriter nor Gua shows ads.
Which is updated more often, SolarWriter or Gua?
SolarWriter ships an update every 5 months, and Gua every 10 days. Most recently, SolarWriter was updated on November 1, 2026 and Gua on October 31, 2026.

Other comparisons