In short
- Each of these ideas meets a concrete, recurring need, from mobile top-up to online learning.
- The right choice depends less on trends than on your access to the audience, the partners and the field.
- Most of these products rely on several connected apps and a solid back office.
- Codex scopes, designs and builds these products, with code, accounts and data that stay in your name.
Most app rankings compare products that already exist. This one does the opposite: it presents ten applications worth building, because they meet a concrete need, rely on a clear business model and remain within reach of a well-scoped first version.
For each idea, you will find the audience it serves, what makes it worthwhile, the key features and a link to the complete guide that details the profiles, the back office, the budget and the steps. Some are written for a specific market, Algeria, Qatar or France, but their logic often transfers elsewhere.
01A Flexy top-up app
In Algeria, mobile credit top-up often goes through a neighbourhood shop. A Flexy app serves resellers, their distributors and the network manager: it replaces notebooks and messages with reliable balances and history. The model is easy to understand and the use is daily. Everything is detailed in the complete guide to the Flexy app.
- top-up for Mobilis, Djezzy and Ooredoo;
- balance and history for each reseller;
- back office for reconciliation and commissions.
02A food delivery app
Restaurants, customers and couriers each get something out of it: the restaurant gains a sales channel, the customer orders without calling, the courier receives clear runs. In Algeria, cash on delivery remains common, alongside CIB and Edahabia cards. The complete guide to the food delivery app details the three apps and the back office.
- menus, ordering and real-time tracking;
- courier app with run assignment;
- restaurant space and order back office.
03A ride-hailing app
A ride-hailing app connects passengers with drivers, with a price known before departure and a trip tracked on the map. It also serves the operator, who vets drivers and handles incidents. It is a demanding product, but the need to get around easily does not go away. The complete guide to the ride-hailing app describes its rules and steps.
- ride booking and price estimate;
- trip tracking and sharing with a relative;
- driver vetting and incident back office.
04A travel booking app
Travel agencies and excursion organisers still sell a lot by phone and by message. An app gives them a showcase of offers, promotions and booking from the phone, while the agency keeps control of its availability. Codex built Rihla Travel, a travel agency app with services, promotions, popular offers and mobile booking. The complete guide to the travel booking app goes further.
- catalogue of offers and promotions;
- booking and confirmation from the phone;
- back office for availability and requests.
05A fitness and membership app
Gyms and studios manage memberships, group classes and slots that are often in high demand. An app lets members book a class, follow their membership and receive club announcements, which helps keep them loyal. The complete guide to the fitness app details memberships, scheduling and access control.
- memberships and renewals;
- class schedule and place booking;
- notifications and member follow-up.
06A real-estate app
Buyers, tenants, agencies and owners all benefit from reliable listings and an effective search. A real-estate app brings together listings, filters, a map and appointment booking, and gives agencies a space to follow their enquiries. The complete guide to the real-estate app in Qatar details its profiles and moderation.
- listings with filters, map, photos and video;
- favourites, alerts and viewing booking;
- agency space and listing moderation.
07An affiliate marketing app
A brand recruits partners who recommend its products and earn a commission on the sales they bring in. The app attributes each sale to the right affiliate, calculates commissions and protects against fraud. The model serves an online shop as well as a reseller network. The complete guide to the affiliate marketing app details these rules.
- unique link or code per affiliate;
- dashboard of sales and commissions;
- payouts and fraud control.
08A logistics app
Carriers, distributors and warehouses need to know where every order and every vehicle is. A logistics app connects the office with field teams: rounds, proof of delivery, stock and incidents. The audience is professional, the use daily and the value easy to measure. The complete guide to the logistics app sets out its building blocks.
- route planning;
- driver app with proof of delivery;
- stock tracking and dashboards.
09An on-demand services app
Cleaning, plumbing, electrical work, small repairs: the customer wants a reliable provider and a slot, the provider wants clear jobs and payment without chasing. An on-demand services platform organises this meeting and keeps a record of it. The complete guide to the services app in France details the model, which transfers to other markets.
- service catalogue and slot booking;
- job assignment to providers;
- reviews, payment and job follow-up.
10An e-learning platform
Training centres, schools, independent trainers and companies want to offer courses that can be followed anywhere. An e-learning platform brings together videos, quizzes, progress tracking and certificates, and serves public courses as well as in-house training. The complete guide to the e-learning platform details the roles and the back office.
- video courses and documents;
- quizzes, progress and certificates;
- trainer space and enrolment management.
11How to choose among these ideas
None of these apps is good in itself: it is good for a founder who has the right assets. A few questions help to decide:
- which audience do you already have access to: shopkeepers, agencies, gyms, companies?
- which partners must be convinced before launch, and do you know them?
- how will the product make money: commission, subscription or service fees?
- how many apps are needed at the start: just one, or one for the customer, one for the provider and a back office?
12The steps with Codex
- 01Discovery. A workshop to test the chosen idea against your audience, your partners and your constraints. It sets the scope, the schedule and the detailed quote.
- 02Design. Journeys, mock-ups and technical architecture, in French, Arabic or English depending on your market. The screens are approved by you before any development.
- 03Development. Short sprints, each shown in a demo, and tests on sensitive journeys: payment, tracking, notifications.
- 04Launch and support. Publication under your name, training for the teams who will run the product, then maintenance and new features.
Read next: native or cross-platform app and the Codex mobile development service.
13Building it with Codex
Codex is a software studio founded in Algiers in 2014. More than 15 engineers and designers build products in French, Arabic and English, and the team has built more than 20 products in-house. The source code, the accounts and the data stay in your name. See the published projects and the certificates of completion.
No office is added locally. The work starts from Algiers (Cité 440 Logements, Ain Malha, Djasr Kasentina), Doha (Building No. 157, Street No. 301, Zone 69, PO Box 8388) and Marseille (Rue de la République, 13002).
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