Independent iPhone apps
Built by one person, start to finish
A dog-walk tracker, an honest calorie counter, a Bali trip planner, a quit-smoking coach, and more on the way. Each one does one job, and does it well.
The apps
Each one started as something I wanted to exist, then got built until it did.
Jupiter Walkies
Bo
The Bali Secret
HOLDNew apps ship when they’re ready, not on a schedule.
See one move · The Bali Secret
Real screens
Straight from the builds on the App Store right now. Not mockups, not renders.
Jupiter Walkies
Bo
The Bali Secret
HOLD
Who builds these
I’m Aziz Sassi. I design, build and support every app on this site myself: no team, no investors, no outsourced support desk. If something breaks, the person reading your email is the person who wrote the code.
Beyond the App Store
Software I build that does not live on the App Store. Different work, same one person.
Guides & answers
To the questions people actually ask. Researched, sourced, and free of the fluff most of these articles are padded with.
Jupiter Walkies
8 guides
Most healthy adult dogs need 30 to 60 minutes of walking a day, but it ranges from 20 minutes to 2 hours by breed, size and age. A breakdown by dog type.
4 min read
The 5-minute rule: 5 minutes of walking per month of age, twice a day. What it means, where it came from, how much it is really worth, and when to walk further.
4 min read
How to tell if it is too hot to walk your dog, the 7-second pavement test, and which breeds overheat fastest. Practical hot-weather walking rules.
4 min read
A 30-minute dog walk burns roughly 90 to 220 calories depending on your weight and pace. The formula behind the number, and why stop-start walks still count.
3 min read
Dogs pull because it works — pulling moves them forward. The fix is making it stop working, consistently. The method, the equipment, and why week one gets worse.
4 min read
A dog that plants itself mid-walk is usually saying pain, fear, heat, or "not that way". How to tell which, and what to do in the moment.
4 min read
Mental work tires a dog faster than distance. Scent games, training and puzzle feeding for bad weather, injury recovery, or a dog that needs more than you can walk.
4 min read
A long loose lead and permission to sniff does more for a dog’s stress than a brisk march. What a decompression walk is and how to run one.
4 min read
Bo
8 guides
Testing found popular AI calorie apps underestimate meals by around a third. Here is where the error comes from, and the three habits that close most of the gap.
4 min read
Most adults need 1,600 to 3,000 calories a day depending on age, size and activity. How to estimate your number, and the minimums you should not go below.
4 min read
Five habits that improve AI calorie estimates by 10 to 15 points: size references, separating components, shooting at an angle, and correcting what you know.
4 min read
Usually the deficit is smaller than you think — intake is underestimated by 12–40% on average. Plus water retention and metabolic adaptation. How to tell which.
3 min read
Macros are protein, carbohydrate and fat. How to set your targets, why protein is the one worth hitting, and how to track without it taking over your day.
3 min read
For most adults, yes — it creates a 700–900 calorie deficit for an average woman, far beyond the 300–500 evidence supports. When it is appropriate.
3 min read
For preserving or building muscle: 1.6–2.2 g per kg of body weight daily. Why the top of that range matters when cutting, and how to hit it easily.
3 min read
Your maintenance is the intake at which weight holds steady. Calculators give an estimate; two weeks of honest logging gives the real number. How to find and use it.
3 min read
The Bali Secret
8 guides
Bali’s dry season runs April to October. May, June and September offer the best mix of weather, crowds and price. February is cheapest. Month-by-month breakdown.
4 min read
A week in Bali costs roughly $350–$550 budget, $700–$1,400 mid-range, and $2,500+ luxury, excluding flights. Daily spend and category-by-category breakdown.
4 min read
Every visitor to Bali pays a one-time IDR 150,000 levy (about $9.30). How to pay it online via the Love Bali portal before you fly.
3 min read
A 7-day Bali itinerary that does not waste two days in traffic: three nights Ubud, three in the south, with travel times and costs that are actually realistic.
4 min read
Scooter accidents are the most common travel insurance claim in Bali. Licence requirements, what your insurance actually covers, and the rules that matter.
3 min read
The four areas first-timers choose between, what each is actually like, and which to pick for surf, culture, nightlife or quiet. Plus why two bases beats five.
3 min read
Most visitors get a 30-day visa on arrival, extendable once. Passport validity, onward travel, the declaration form and the levy — the full checklist.
3 min read
Bali is generally very safe for visitors. The real risks are scooters, the sea, rabies and methanol — not violent crime. What to actually watch for.
4 min read
HOLD
9 guides
A single nicotine craving passes in 10 to 15 minutes. Cravings peak around day 3 and fade over 3 to 4 weeks. Here is the full timeline and what actually helps.
4 min read
Nicotine withdrawal starts within 4 to 24 hours, peaks around day 3, and mostly settles in 3 to 4 weeks. A realistic day-by-day timeline of symptoms.
3 min read
Most quit-vaping advice covers the decision, not the craving. A practical plan built around the 10 to 15 minute craving window and the day-3 peak.
4 min read
Heart rate drops in 20 minutes, carbon monoxide clears in 12 hours, heart disease risk halves at one year. The full recovery timeline, hour by hour.
3 min read
Nicotine narrows blood vessels, which reduces the oxygen reaching your skin. What that does to healing, tone and lines — and what improves after you quit.
3 min read
Most people gain 4–5 kg after quitting nicotine, most of it in the first three months. Why it happens, and what limits it without risking the quit.
3 min read
Anxiety and irritability are recognised nicotine withdrawal symptoms, peaking 24–48 hours after quitting and easing over about four weeks. What helps.
4 min read
Nicotine pouches remove the smoke but not the dependence. Where they fit versus licensed NRT, and why using them to control appetite tends to backfire.
3 min read
Nicotine clears the blood in 1–3 days, but cotinine — what tests actually measure — can last up to 3 weeks in heavy users. Full detection times by test type.
3 min read
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