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Productivity startup ideas

Forgetting your own solutions to problems: Fix Journal

A startup idea for people asking “Forgetting solutions you came up with for your problems/situation” on Reddit

Buildable with AI or no-code See more in app ideas.

Opportunity brief

4/10 opportunity see breakdown

Signal
2/10
Model
App · Difficulty: Med
Updated
By
PainPoint Daily Team · How we score

Evidence from Reddit

Reddit threads
1
Days seen
1
Peak rank
#93
“Like if I have a multifaceted vision, I will forget things I am motivated to do.”u/SoTiredYouDig on r/ADHD

First seen on Reddit · Last seen

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Fix Journal is a subscription app idea for adults with ADHD and others who keep re-solving the same problems. It solves “Forgetting your own solutions to problems”, a problem raised in r/ADHD on .

  • Evidence: 1 Reddit thread, seen on 1 day
  • Scores: opportunity 4/10 (five-part rubric), signal 2/10 (computed from thread count, days seen and best rank)
  • Suggested price: Estimate: free for 20 entries; $3-5/month for unlimited and smart resurfacing; build difficulty: Med
“Like if I have a multifaceted vision, I will forget things I am motivated to do.”— u/SoTiredYouDig on r/ADHD, thread seen

Published · Updated · By PainPoint Daily Team · How we score · First seen on Reddit · Last seen · Seen on 1 day in 1 thread

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A searchable 'personal playbook' that captures the fixes and insights you figure out, then resurfaces them automatically the next time the same problem shows up.

The problem people are complaining about

On Oct 22, 2026, a thread titled “Forgetting solutions you came up with for your problems/situation” reached #93 in our daily ranking of productivity problems on Reddit. The thread was posted in r/ADHD. Fix Journal is aimed at that need: a searchable 'personal playbook' that captures the fixes and insights you figure out, then resurfaces them automatically the next time the same problem shows up.

Who the customer is

People, especially those with ADHD, who work out a good strategy for a recurring problem (a morning routine, a work conflict, a money habit) and then forget it completely the next time it happens. Notes apps become graveyards; they need the right note to come back at the right moment.

In short, the first customer to target is: Adults with ADHD and others who keep re-solving the same problems. Start with the narrowest version of this group you can reach directly, ideally in the same communities where the problem was posted, rather than trying to serve everyone with the problem at once.

The idea

Fix Journal is a subscription app idea. A searchable 'personal playbook' that captures the fixes and insights you figure out, then resurfaces them automatically the next time the same problem shows up. It makes money through monthly subscription; free tier with limited entries.

Business modelSubscription app
How it makes moneyMonthly subscription; free tier with limited entries
DifficultyMed
Opportunity score4/10 — Easy to build, but notes apps already serve this and retention is hard, with limited demand so far.

Score breakdown how we score

  • Demand 30%2.6/10
  • Pain & willingness to pay 25%3/10
  • Buildable with AI/no-code 25%8/10
  • Easy first customers 10%6/10
  • Room in the market 10%3/10

Pricing guess

Estimate: free for 20 entries; $3-5/month for unlimited and smart resurfacing. This is our estimate, not market data: treat it as a starting hypothesis and test it with real buyers before relying on it. Price anchors from the alternatives below and what people already spend on workarounds are the best reality check.

MVP you can build

Weekend: a simple 'problem → what worked' log with tags and a weekly email that resurfaces relevant entries based on the user's recent check-ins. Keep the first version deliberately small: the goal is to learn whether people use it and pay, not to build every feature.

How to validate it in three steps

  1. Share a free template version and count how many people still add entries after two weeks.
  2. Interview users about which moments they wished an entry had shown up.
  3. Test whether resurfacing by email or by phone notification keeps more users.

Decide your success threshold before you start each step (for example, a number of signups or pre-orders), so the result actually tells you something.

Competition & existing alternatives

Notion, Obsidian, Day One journal, Apple Notes, Mem Before building, try each alternative as a customer would and note exactly where it fails the people in the threads; that gap is your positioning.

Risks

How we scored it

Opportunity score (4/10) rates how well the idea suits one founder building with AI or no-code tools: demand (30%, from the signal score), pain and willingness to pay (25%), buildable with AI or no-code (25%), easy first customers (10%) and room in the market (10%), each rated 0–10 and combined into a whole number. Signal score (2/10) is calculated from our data only: 2 points for one thread, 4 for two, 6 for three or more; +1 for each extra day the problem appears (max +2); and +2 if it ranked in the daily top 10, +1 for top 25, +0.5 for top 50. Neither score is a forecast. See our scoring methodology and how it works.

FAQ

Is Fix Journal a good startup idea?

We rate it 4/10 for opportunity: Easy to build, but notes apps already serve this and retention is hard, with limited demand so far. The main risk: Notes apps (Notion, Obsidian) can be used for this, so the resurfacing must be clearly better.

Who would pay for software that solves “Forgetting your own solutions to problems”?

The first customer to target: Adults with ADHD and others who keep re-solving the same problems. None of the source threads state a price or willingness to pay yet, so validate this first.

How do I validate Fix Journal?

1) Share a free template version and count how many people still add entries after two weeks. 2) Interview users about which moments they wished an entry had shown up. 3) Test whether resurfacing by email or by phone notification keeps more users.

What already exists for “Forgetting your own solutions to problems”?

Notion, Obsidian, Day One journal, Apple Notes, Mem.

Where did the Fix Journal idea come from?

From the Reddit thread “Forgetting solutions you came up with for your problems/situation.” in r/ADHD, first seen on Oct 22, 2026.

Reddit evidence

The original threads (opens Reddit):

Appeared in the daily list: Oct 22, 2026 (#93).

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Ideas are written by PainPoint Daily as starting points, not investment advice. Validate demand before building.

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