Comparison

Solar Holler vs Fourth Step Inventory

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

Head to head
About

Solar Holler

Features
Read full description

Track your installation process in real time, monitor your solar energy production and consumption once your system has been installed, earn money by referring your friends and family, open a new support ticket or update your account details with the Solar Holler app. It's a key piece for any homeowner going solar with Solar Holler.

About

Fourth Step Inventory

Features
Read full description

Fourth Step Inventory is a private, structured journaling tool designed to help individuals reflect on resentments, personal patterns, and character defects through a card-based inventory process inspired by the Fourth Step of 12-step recovery programs. The app provides a calm, focused space to document resentments one at a time, examine affected areas of life, and explore personal responsibility without judgment. All entries are stored locally on your device, giving you full control over your data and privacy. Features • Create and manage Fourth Step inventory cards • Record who or what you are resentful at, and why • Identify affected life areas such as self-esteem, relationships, ambition, and security • Reflect on your role using common character defect categories • View recurring character defects across your inventory • Visualize patterns with a character defect cloud • Export your inventory as JSON or CSV for personal review or sharing • Print a visual summary of recurring character defects • No accounts, no tracking, no cloud storage Privacy First Fourth Step Inventory does not collect, transmit, or share your data. All information remains on your device unless you choose to export it. Intended Use This app is intended for personal reflection and self-inventory. It is not affiliated with Alcoholics Anonymous or any other recovery fellowship, and it does not provide medical, psychological, or professional advice. Many users choose to discuss their inventory work with a sponsor, counselor, or trusted advisor.

Screenshots

Solar Holler4 screens
Fourth Step Inventory4 screens

Verdict

The call

The clearest difference is update cadence: Solar Holler at every 3 days against Fourth Step Inventory's every 4 months. Solar Holler also leads on iOS requirement (14.0 vs 16.6). On price, ads, in-app purchases and device support there is nothing between them.

Scored on Price Ā· Rating Ā· Positive reviews Ā· Number of ratings Ā· Update frequency Ā· Ads Ā· In-app purchases Ā· Monetization Ā· Best chart rank Ā· Devices Ā· Requires iOS

CostPrice Ā· In-app purchases Ā· Ads Ā· Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Solar Holler ships an update every 3 days, Fourth Step Inventory every 4 months. Both last shipped on October 25, 2026.

Scorecard2 real differences Ā· 4 level
Solar Holler versus Fourth Step Inventory: the parameters behind the verdict, then further details
ParameterSolar HollerFourth Step Inventory
PriceFreeFree
Update frequencyEvery 3 days — betterEvery 4 months
AdsNoNo
In-app purchasesNoNo
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS14.0 — better16.6
Further details — not scored
Size8 MB2 MB
Age rating4+4+
DeveloperSolar HollerSTEVEN MARC GORLIN

In-app purchases

None

Solar Holler

No in-app purchases

None

Fourth Step Inventory

No in-app purchases

Questions

Is Solar Holler free?
Solar Holler is free to download, with no in-app purchases.
Is Fourth Step Inventory free?
Fourth Step Inventory is free to download, with no in-app purchases.
Do Solar Holler or Fourth Step Inventory have ads?
Neither Solar Holler nor Fourth Step Inventory shows ads.
Which is updated more often, Solar Holler or Fourth Step Inventory?
Solar Holler ships an update every 3 days, and Fourth Step Inventory every 4 months. Most recently, Solar Holler was updated on October 25, 2026 and Fourth Step Inventory on October 25, 2026.

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