Feature spec
Goal: Send a clear invoice after finishing a job.
- Add a client, line items, a due date, and payment instructions.
- Preview the total before exporting a PDF.
- Keep an editable draft if export fails.
* from the makers of the original c25k app, this app will get you off the couch and change your life
$2.99 · In-app purchases
Evidence scope: No current overall US chart position is available. Category-chart positions shown in discovery are a separate scope. Revenue is a directional model estimate, not verified earnings.
A product spec, screen plans, and build steps for your coding agent.
First kit free with a verified email
Combine features and design from your favorite apps.
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Generating… usually about a minute.
What should your app do differently? Your note travels with the kit so your coding agent builds around your idea.
A product spec, phased build plan, differentiation notes, and screen references.
Illustrative example: an invoice app for independent contractors. Your kit is tailored to the app you choose; this is not its generated content.
Goal: Send a clear invoice after finishing a job.
Invoice editor: Client at the top, editable line items in the middle, total and preview action at the bottom.
States: Empty draft, validation errors beside each field, exporting, and a retry action that preserves the draft.
Hypothesis: Contractors need faster repeat invoices more than more templates.
First experiment: Test duplicating a previous job with five contractors. Watch where they hesitate before expanding the feature set.
The full kit adds a phased build plan, evidence notes, tool prompts, and implementation guidance. It is a plan for your coding agent, not a finished app.
Usage: Mechanics are fair game; never reuse the original name, branding, assets, or verbatim copy.
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Good fit for mobile-first iOS and Android prototypes with managed app scaffolding.
Rork plan preview for Ease into 5K: run walk interval training program: map the core Health & Fitness workflow, choose the smallest differentiated feature set, define the data and monetization boundaries, then prototype the riskiest user journey first.
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These are generated suggestions, not verified review quotations. Check current App Store reviews and speak with users before treating a possible gap as a requirement.
Hypothesis 1
Assumption to check: Limited workout variety and customization options
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: Inconsistent tracking of progress and stats
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: Lack of social features for motivation
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: Paywall after few workouts may deter users
Validate with people who use this workflow before building.
Original App Store material. Ratings and screenshots describe the existing app, not proof of demand for your version.
* from the makers of the original c25k app, this app will get you off the couch and change your life. it's the easiest way to start running, period. * top health mag *self magazine* gave us a whopping 5 stars! as seen on abc news… and featured in the "best iphone apps" book!!! this app is a running coach in your iphone – pushing you as you sprint and slowing you to a walk based on a proven interval training plan. no celebrity trainer needed! just this top-graded app & your shoes. get off the couch 3 times a week for 30 mins at a time – and watch yourself become a marathoner. interval training for a 5k is an absolute chore without this app. yes, you can still listen to your workout tunes. this app works alongside your music. with ease into 5k by bluefin, couch potatoes and insanely busy people alike are gradually transforming into long-distance running machines… with just 30 minutes 3x each week. that's only 90 minutes a week. and in that small handful of minutes, you'll actually be training the right way. we're talking training to lose weight and run 5k. so you won't spend your treadmill time wishing you knew what runners with coaches know. ******the ultimate couch potato transformation app is at your fingertips. proven training for new runners!****** training ends in 8 weeks... or keep going ------------------------------------ 8 weeks to complete new! when you're done with the 8-week plan, keep training (requires gps*) no need to look down at your watch while self-training built by runners alternates between running & walking just 3 runs/ week at 30-40 mins each runhelper connect ---------------- new online companion for your bluefin apps back up and restore your workouts view all your data from all your bluefin apps in one place weekly workout summaries workout reminders to help you stay motivated ...and much more! works with iphone and ipod touch! great with nike+ -------------------------------------------- track your distance, pace, weight & calories burned with gorgeous graphs track days you've completed toward your goal… and see your history listen to your own music… and skip tracks without leaving the app audio alerts coach you to switch from running to walking and back get big encouragement by sharing on facebook or twitter (@bluefinapps) plus! choice of male or female coach voice. journal entries. compatible with ios 5 and 6. *** transform from barely-working-out to omg-i-can-run… in just 8 weeks for $3 *** why it's the most popular 5k running app -------------------------------------- ironman listens to his own music" "not only did this app give me audio alerts telling me when i should run or walk, but i was able to listen to my own music from my ipod list instead of some other person's preference of motivational music." – matthew murphy completed first 5k by week 7 (in 0:27:37). has since done ironman! great-great-granddaughter of emily post now runs "i have never been a distance runner – hated running warm ups in high school, was always the last one done, huffing and puffing the whole way. while i had heard of interval programs, i had never tried one or thought i could do it... until i found your app. it has been the missing piece that allowed me to break my weight loss plateau." – lizzy post from 365 pounds to running the 5k... in 6 months "in february of 2011, i weighed 365 pounds. i decided it was time to change. i began to look at programs to help beginning runners. i was convinced that this app from bluefin software was the best choice. on july 4th, i ran a 5k! if you're thinking about starting to run, i can tell you - without hesitation - that app from bluefin is the best start." – mark d rucker completed 5k and 10k. signed up for half-marathon on oct 23, 2011! note: continued use of gps running in the background can dramatically decrease battery life.
Written user reviews are not shown here. Check current App Store reviews >
Plan a focused first version with your coding agent. These are planning assumptions, not a delivery guarantee.
Choose one audience and one core workflow. Use the kit to agree on its screens, data, and acceptance criteria before building.
Decide which secondary features, integrations, and platform support can wait. Your version does not need to reproduce everything in the original.
Validate external services, specialist technology, data access, and ongoing costs for your chosen scope.
From the Build Kit assessment.
A reliable timeline needs an agreed scope and a technical check. Ask your agent to estimate the phases in BUILD_PLAN.md after that review.